Exponential Growth Functions - Quiz Quiz

Question 1

Which graph shows exponential growth?

Revolt · Accepted Answer

A: Image with description On a coordinate plane, a curve approaches y = 0 in quadrant 2 and curves up into quadrant 1.

Question 2

A limited-edition poster increases in value each year with an initial value of 18 dollars After 1 year and an increase of 15 percent per year, the poster is worth 20 point 7 0 dollars Which equation can be used to find the value, y , after x years? (Round money values to the nearest penny.)

Revolt · Accepted Answer

C: y is equal to 18 times 1 point 1 5 to the x th power

Question 3

An account is opened with 7,595 point 9 6 dollars with a rate of increase of 2 percent per year. After 1 year, the bank account contains 7,746 point 9 0 dollars Assuming no deposits or withdrawals are made, which equation can be used to find y , the amount of money in the account after x years? (Round money values to the nearest penny.)

Revolt · Accepted Answer

B: y is equal to 7,595 point 9 6 times 1 point 0 2 to the x th power

Question 4

Ramon is graphing the function f of x is equal to 3 times 4 to the x th power He begins by plotting the initial value. Which graph represents his initial step?

Revolt · Accepted Answer

C: Image with description On a coordinate plane, the point 0 comma 3 is graphed.

Question 5

After years of maintaining a steady population of 32,000 , the population of a town begins to grow exponentially. After 1 year and an increase of 8 percent per year, the population is 34,560 Which equation can be used to predict, y , the number of people living in the town after x years? (Round population values to the nearest whole number.)

Revolt · Accepted Answer

C: y is equal to 32,000 times 1 point 0 8 to the x th power

Question 6

A function of the form f of x is equal to A b to the x th power is modified so that the b value remains the same but the a value is increased by 2 How do the domain and range of the new function compare to the domain and range of the original function? Choose two correct answers.

Revolt · Accepted Answer

A: The range stays the same.; E: The domain stays the same.

Question 7

Which best describes the graph of the function f of x is equal to 4 times 1 point 5 to the x th power ?

Revolt · Accepted Answer

A: The graph passes through the point  0 comma 4 , and for each increase of  1  in the  x -values, the  y -values increase by a factor of  1 point 5 .

Question 8

Which is the graph of f of x is equal to 5 times 2 to the x th power ?

Revolt · Accepted Answer

C: Image with description On a coordinate plane, an exponential growth function approaches y = 0 in the second quadrant and goes through points 0 comma 5 and 2 comma 20.

Question 9

Josiah invests 360 dollars into an account that accrues 3 percent interest annually. Assuming no deposits or withdrawals are made, which equation represents the amount of money in Josiah’s account, y , after x years?

Revolt · Accepted Answer

B: y is equal to 360 times 1 point 0 3 to the x th power

Question 10

Which is the graph of f of x is equal to 0 point 5 times 4 to the x th power ?

Revolt · Accepted Answer

A: Image with description On a coordinate plane, an exponential growth function approaches y = 0 in the second quadrant and goes through points 0 comma one half, 2 comma 8, 3 comma 32.

Exponential Growth Functions - Quiz Quiz Answers

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