Mathematics Middle School

The graph shows an exponential relationship between x and y.

1 Write an equation representing this relationship.

2 What is the value of y when x=-1?

3 What is the value of y when x=-2?

The Graph Shows An Exponential Relationship Between X And Y.1 Write An Equation Representing This Relationship.2

Answers

Answer 1

Answer:

1. y = 50 x [tex]2^{x}[/tex]

2. 25

3. 12.5

Step-by-step explanation:

You can see by the graphs the numbers are doubling by each year. For the last two questions plug in the number to the equation and you should get the same answer.

Hope this helps!

Answer 2

1)The equation representing this relationship is y=50×2ˣ.

2)The value of y when x=-1 will be 25.

3)The value of y when x=-2 will be 12.5.

What is an exponential function?

The exponential function is classified as a function that increases swiftly and whose value is always positive. using the exponent y = aˣ,, where an is a constant greater than 1, and a>1.

It is given that the graph shows an exponential relationship between x and y.

1)

The standard exponential function is,

y=baˣ

y=50×2ˣ

2)
When x= -1 the obtained value of y is,

y=50×2ˣ

y=50×2⁻¹

y=50/2

y=25

3)

When x= -2 the obtained value of y is,

y=50×2ˣ

y=50×2⁻²

y=50/4

y=12.5

Thus, the equation for this relationship is  y=50×2ˣ,, where the values of y at x=-1 and x=-2 are 25 and 12.5, respectively.

Learn more about the exponential function here:

brainly.com/question/11487261

#SPJ2

Related Questions

A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results:

80 choose the aquarium.
60 choose the science center.
30 choose the planetarium.
40 choose the farm.
The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium.

Answer the questions to solve the problem.

1. How many students did the teacher survey?


Write your answer in the space below.















2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work.


Write your answer in the space below.















3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium?


Write your answer in the space below.















4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work.


Write your answer in the space below.

Answers

Answer:

the answer is 80% because there are 80 people

Step-by-step explanation:

there was 780 more percent

Find the total surface area of the rectangular prism shown.

Answers

456 I think is the answer
456 is the answer your welcome

PLEASE HELP IM SO CONFUSED!!!

Answers

Problem 1

The median weight of the Welsh corgis is 27 pounds. This is found in the table in row 1, column 2. Recall that the median is the middle most value, so that means 50% of the Welsh corgi weights will be less than 27 pounds, and also 50% of the weights are greater than 27 pounds.

========================================================

Problem 2

The Welsh corgis have the greater variation in weights. Why is this? There are two pieces of evidence:

The first of which is that the range for the first row (7) is larger than the range in the second row (2). The range is the difference between the max and min. The larger the range, the more spread out the data set will be.

The second piece of evidence is that the MAD (mean absolute deviation) for the Welsh corgis is larger compared to the MAD for the cocker spaniels group. The MAD is another way to measure the spread of a data set. Like the range, the larger the MAD gets, the more spread out the data is. It measures how far on average any given value is from the mean. It's similar to the standard deviation and variance, which are also measures of spread.

========================================================

Problem 3

Both dog breeds have the same mean value, and roughly the same median. Both the mean and median are measures of center. Based on just these two pieces of info alone, we could easily conclude that both dog groups have the same distribution more or less. Furthermore, we could conclude that both groups have roughly the same max weight value.

However, we discussed in problem 2 that the first group (Welsh corgi) is more spread out, so it's likely that could heavily imply that the min and max values are further from the center compared to the second group of dogs. Having a larger max would then mean that the corgi group has the largest weight.

In short, the answer is "Welsh corgi" due to this group having a greater spread, and that pushes the max further away from the center.

3 I’m sure it’s correct

What is the difference in the median wait times? minutes

Answers

Answer:

5 minutes

Step-by-step explanation:

the median is the middle line so 20-15=5

The difference is 5 minutes

Taylor saw sunglasses for $90, that were on sale for 10% off. She had her Employee
Discount card for an extra 10% off the SALE PRICE. How much will Taylor end up
paying?

Answers

Answer:

81 dollars

Step-by-step explanation:

Answer: %72 or %81

Step-by-step explanation: If you want to take off 10 percent from 91 the answer should be 81. If you are trying to take off 20 percent the answer should be $72.

Which of the following is not a situation in which a credit report is used?

a. Grocery stores use it to determine whether a person can shop there.

b. Landlords use it to decide whether to rent their homes to someone.

c. Utility companies use it to decide whether to provide services to someone.

d. Insurance companies use it to decide whether a person can get insurance.

Answers

Grocery stores use it to determine whether a person can shop there.

Answer:

Grocery stores use it to determine whether a person can shop there.

Step-by-step explanation:

If we changed the -0.14 to a 2 in the equation, what would happen to the graph?

Answers

Answer:

It would become a positive graph meaning a positive slope or it would be more steeper

Step-by-step explanation:

PLEASE HELP!! ITS JUST PERCENTAGES

Answers

Answer:

12a. 22.5%

12b. 77.5%

13. $4000

Step-by-step explanation:

12.

    a. 315/1400= 0.225 = 22.5%

    b. 1400-315=1085  1885/1400= 0.775 = 77.5%

13.

[tex]\frac{5}{100} = \frac{200}{4000}[/tex]

5/100 will be equal to 200/4000 so the hair stylist made $4000 in sales.

also if im wrong sorry!!

12a. 22.5%
12b. 77.5%
13. $4,000
HOPE I COULD HELP GOOD LUCK:))

Determine if this is a fair game:
You play a game with the spinner shown. For every two spins, you earn 2 points for getting either an even-even or an odd-odd, but you lose 1 point for getting one of each.

A. unfair
B. fair

Answers

What is an even even and an odd odd?
B. Fair because there is no way to “rig” it. there is an equivalent chance of getting either.

How many triangles exist with the given angle measurements? 25, 65, 85

Answers

Answer:

0

Step-by-step explanation:

There are supposed to be 180 degrees in every triangle.

Therefore, no triangles exist.

PLS HELP ME I NEED THE ANSWER

Answers

Answer:

x^2 + 11x + 46 / 4(x+7)(x+5)

Step-by-step explanation:

If you want steps just comment :)

Which of the following would be found on a consumer’s credit report?

A. A savings account balance

B. Whether or not the consumer has made any late payments

C. The number of children the consumer has

D. Whether or not the consumer is approved for a loan

Answers

A. A savings account’s balance.
A is your answer i hope you pass.

math problem time lol

Answers

The answer is 62.8
Use the formula C=(3.14)d
C=(3.14)(20)
C= 62.8
Circumference of a circle = 2(3.14)r
The radius is 10
So 2 x 3.14 x 10 =62.83

help pls wil give brainllest to right anwser plss

Answers

Answer: Its C but I'm not 100 %

Step-by-step explanation:

the answer to this question would be C.

53. Find the value of x and y. Round your answer to two decimal places.

Answers

Answer:

x=4,90

y=8.66

Step-by-step explanation:

pythagoras thereom:

7²-5²=24

√24=4.90

10²-5²=75

√75=8.66

draw a new location of the pole barn on the graph below. Note that the stock tank is located at the origin.

Answers

Answer:

i think you reflect across the axis

Step-by-step explanation:

i learned this

: )

What is the slope of the line shown above?​

Answers

Answer:

1/5x

Step-by-step explanation:

the answer to your question is1/5x

50 points because this one is difficult! Please help me!!! I don't understand! I will give brainliest and 5 stars. :) Please no links or random answers. I really need help. Thanks to anyone who gives me an answer. :D - Luna


Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 35 problems. Each problem is worth either 5 points or 2 points. How can you set up a system of equations to find how many problems of each point value are on the test?

Let x = the number of questions worth 5 points.

Let y = the number of questions worth 2 points.

Answers

Answer:

Step-by-step explanation:

5x+2y=100

x+y=35

x=10

y=25

x - the number of 5 points worth problems
y - the number of 2 points worth problems

The test has 29 problems.
x+y=29

The test is worth 100 points.
5x+2y=100

The system of equations:
x+y=29
5x+2y=100

The solution:
-2x-2y=-58. | x (-2)
5x+2y=100
divided by
3x=42. (divided by 3)
x=14
14+y=29
y=15

!!!*BRAINLIEST*!!!

A city park in the shape of a rectangle measures 90 yards by 120 yards. A rectangular playground inside the park measures 18 yards by 24
yards. What is the area of the city park around the playground?

A. 432 square yards
B. 10,368 square yards
C. 504 square yards
D. 10,800 square yards

Answers

Answer:

I'm pretty sure the answer is [B] 10,368.

The answer is b (10,368)

12. Tiger Woods was 4 under par (-4) in the first round. He shot 2 over par (+2) in the second round. He shot the same score in the 3rd and 4th rounds. He finished at 8 under par ( -8). What did he shoot in the 3rd and 4th rounds?

Answers

I think -3; If the final par was -8, you would subtract (-4 + 2), you would get -6. Then you just divide it in half because it said he scored the same in rounds 3 and 4, leaving you with -3.

The recycling center processes 35,000 pounds of recyclable materials. How many tons are processed?

Answers

Answer:

17.5 tons

I hope it's helps you

Answer:

17.5 tons

Step-by-step explanation:

1 ton = 2000 lb

35,000 lb * (1 ton)/(2000 lb) = 17.5 tons

44. Find the length of the hypotenuse, c in this triangle. Give the answer in the form c=_
.

Answers

Answer:

c = 26

Step-by-step explanation:

a^2 + b^2 = c^2

24^2 + 10^2 = 676

[tex] \sqrt{676} = 26[/tex]

hope this'll help you!

here's your solution

by using Pythagoras theorem

=> h^2 = b^2 + p^2

=> h^2 = 24^2 + 10^2

=> h^2 = 576 + 100

=> h^2 = 676

=> h = √676

=> h = 26

= C = 26

hope it helps

52. Noah’s car has run out of gasoline. He walks 15 km west and then 8 km south looking for a gasoline station. If he is now h km directly from his starting point, find the value of h.

Answers

Use the Pythagorean theorem

H = sqrt (8^2 + 15^2)

H = sqrt(64 + 225)

H = sqrt(289)

H = 17 km

!!!*BRAINLIEST*!!!

Edge lengths are given in units. Find the surface area in square units.

Answers

Answer:

204

Step-by-step explanation:

Triangles:

4*6 = 24/2 = 12 * 2 = 24

Rectangles:

12*5 = 60*3= 180

Final:

180+24= 204

Circumference (Level 2)
Need help with this.

Answers

.25 meters is the answer
.25 meters, correct answer :)

15. Which of the following is NOT possible?
A. A regular polygon with interior angles adding up to 432
B. A regular polygon with interior angles adding up to 1260

Answers

B=1260.
(according to your question on #11, stating a regular polygon with interior angles adding up to 1260)
I believe it is A.
Please give me Brainliest

I'm lazy but have a lot of points

Answers

Answer: 37

Step-by-step explanation:

Well DCB is a right angle, and there is already half which is 53 degrees, subtract 90 by 53 and you will get your answer.

HELPPPPPPPP PLEASEEEEEEE ILL PAY

Answers

Answer:

Certain

- The number is positive

More likely than not

- The number is greater than 6

- The number is less than 10

As likely as not

- The number is multiple of 5

- The number is odd

Unlikely

- The number is 2 or 4

I hope that helps tho

How do the values compare order the values from least to greatest

Answers

-2 1/2 -2 -1/2 1/2 1 1/2
1. -2 1/2
2. -1/2
3. |1/2|
4. 1 1/2
5. |-2|
6. |-2 1/2|

brainlest pls bestie

What is the volume of the triangular prism below?

Answers

You can start by finding the base and height, then you can divide that by 2. Sorry if it’s wrong!!
Other Questions
what is the answer to this question marking brainliest if it's correct 1. If a system is isolated, the total energy within that system is constant. Consider the case of a hot cup of coffee: when it cools down, the energy goes into the surrounding air, causing the air to warm. If the coffee and the air are placed in an isolated chamber, the total energy of the system (coffee + air) is constant because the energy lost by the coffee is exactly equal to the energy gained by the air.The only way for the total energy of a system to change is when it is not isolated, meaning that external forces or sources of energy interact with the system. If we want to define a system where the total energy is conserved, which one of the choices below would be the best system to consider?A. The personB. The person and the EarthC. The Earth2. Based on your answer to Question 1, why doesnt the total energy of the Earth-person system change when the person goes up to a new height, gaining potential energy? Analyze the image below and answer the question that follows.The hierarchy above represents the governmental structure of __________.A.IranB.IsraelC.Saudi ArabiaD.Turkey image down below plz help what is the equation for g, which is f(x)=2x+3x-1 reflected across the y-axis ?[tex] \: \: \: [/tex] How much energy is required to raise the temperature of 74 g of water from 19 C to 47 C. A man has Rs 1900. he lent some of it at 5% p.a and rest at9% p.a. The total amount of interest which he got after4 years was Rs 580.Wwhat was the sumans= Rs650,Rs 1250 Ben bought 3.2 pounds of oranges.The oranges cost $1.60 per pound.How much money did Ben spend onoranges? Analyze the map. Then, answer the question thatfollows.South Africa is an example of a(n)elongated state.perforated state.prorupted state.enclave.exclave. Which of the following statements is false?ACredit cards let you spend unlimited money.B.Credit cards have minimum monthly payments.Credit cards give you the chance to build good credit.DCredit cards let you spend money that you don't have. How can railroad mileage contribute to a war effort? Helppppppppppppppppppppppp in your own words tell briefly the main ideas in "the parable of a lost sheep" what was the purpose of the Marshall Plan? Can someone plz help me with this one problem plz!!! CAN SOMEONE PLZ HELP ME?? PLZ DO YOU KNOW ABOUT Coordinate Planes??!! AHH Sakura wants to analyze the effect of drinking alcohol on the functioning capacity of the liver. Her two research associates will conduct two separate studies about the same topic. Ricochet use an experiment approach. Tituba will use an observation study approach. Determine what will be the difference between both studies. Which of the following states in the nineteenth century experienced social tensions resulting from the introduction of foreign cultural influences in a way most similar to that described in the passage?(A) The Ottoman Empire(B) Russia(C) Australia(D) The United States Sonya has 5 sandwiches. She cuts each sandwich into fourths and gives away 6 pieces. How many 1/4 size sandwiches does she have now?