Quiz about 8.3-8.4 Review

Question 1

What is the y-intercept of the function?

Accepted Answer

(0, 3)

Answer

(0, 2)

Answer

(0, 1)

Answer

(0, -2)

Question 2

What is the equation of the horizontal asymptote for following exponential function?

Accepted Answer

y = -4

Answer

y > -4

Answer

y < -4

Answer

(0, -3)

Question 3

This is an example of:

Accepted Answer

Exponential Growth

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Decay

Question 4

This is an example of:

Accepted Answer

Exponential Decay

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Growth

Question 5

What is the Domain of this exponential function?

Accepted Answer

All Real Numbers

Answer

y=1

Answer

x=0

Answer

x>0

Question 6

What is the Range of this function?

Accepted Answer

y>0

Answer

x> 0

Answer

All Real Numbers

Answer

y= 1

Question 7

What is the range of the exponential function?

Accepted Answer

y > 3

Answer

all real numbers

Answer

y < 3

Answer

x > 3

Question 8

Gabby deposits $800 at 3.87% interest, compounded quarterly. What is her ending balance after one year?

Accepted Answer

$831.41

Answer

$1,157.50

Answer

$807.74

Answer

$931.22

Question 9

What is the initial amount for the following exponential function?

$$f\left(x\right)=25\left(1+.06\right)^x$$

Accepted Answer

25

Answer

.25

Answer

.06

Answer

6%

Question 10

What is the rate of change for the following exponential function?

$$f\left(x\right)=25\left(1+.06\right)^x$$

Accepted Answer

6%

Answer

25

Answer

.25

Answer

.06

Question 11

What is the initial amount for the following exponential function?

$$f\left(x\right)=25\left(1-.06\right)^x$$

Accepted Answer

25

Answer

.25

Answer

.06

Answer

-6%

Question 12

What is the rate of change for the following exponential function?

$$f\left(x\right)=25\left(1-.06\right)^x$$

Accepted Answer

-6%

Answer

25

Answer

.25

Answer

.06

Question 13

What is the initial amount for the following exponential function?

$$f\left(x\right)=42\left(1.26\right)^x$$

Accepted Answer

42

Answer

.42

Answer

.26

Answer

26%

Question 14

What is the rate of change for the following exponential function?

$$f\left(x\right)=42\left(1.26\right)^x$$

Accepted Answer

26%

Answer

42

Answer

.42

Answer

.26

Question 15

What is the initial amount for the following exponential function?

$$f\left(x\right)=47\left(0.93\right)^x$$

Accepted Answer

47

Answer

.47

Answer

.93

Answer

-7%

Question 16

What is the rate of change for the following exponential function?

$$f\left(x\right)=47\left(0.93\right)^x$$

Accepted Answer

-7%

Answer

47

Answer

.47

Answer

.93

Question 17

Write an exponential function that models the following situation:

A $32,000 car is expected to lose one-eighth of its value each year.

Accepted Answer

$$f\left(x\right)=32,000\left(1-\frac{1}{8}\right)^x$$

Answer

$$f\left(x\right)=32,000\left(1+\frac{1}{8}\right)^x$$

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