Quiz about Key Features of Exponential Functions

Question 1

What is the range of this graph?

Accepted Answer

y > -6

Answer

y = 6

Answer

(0, -4)

Answer

y < -6

Question 2

What is the y-intercept of the function?

Accepted Answer

3

Answer

2

Answer

1

Answer

-2

Question 3

What is the x-intercept of the exponential function?

Accepted Answer

There is not one

Answer

(0,1)

Answer

(0,0)

Question 4

Given y=3^xdetermine the y-intercept

Accepted Answer

(0,1)

Answer

(0,3)

Question 5

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

Accepted Answer

13

Answer

(.27)x

Answer

.27

Answer

3.51

Question 6

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Accepted Answer

2

Answer

4

Answer

(2)x

Answer

8

Question 7

Identify the common ratio (multiplier) of the function f(x)=2(4)^x.

Accepted Answer

4

Answer

2

Answer

(2)x

Answer

8

Question 8

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Accepted Answer

2

Answer

4

Answer

(2)x

Answer

8

Question 9

Given the function, f(x) = 6.5(0.85)^x, identify the initial value.

Accepted Answer

6.5

Answer

0.85

Answer

x

Answer

f(x)

Question 10

Given the function, f(x) = 6.5(0.85)^x, identify the growth/decay rate.

Accepted Answer

0.85

Answer

6.5

Answer

x

Answer

f(x)

Question 11

What is the y-intercept of the function?

Accepted Answer

1

Answer

2

Answer

3

Answer

-2

Question 12

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%.  What is the initial value?

Accepted Answer

$3000

Answer

4%

Answer

40%

Answer

$3000(1.04)

Question 13

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%.  What  is the rate?

Accepted Answer

.04

Answer

.4

Answer

.96

Answer

1.04

Question 14

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What percent did the population increase each year?

Accepted Answer

4%

Answer

It doesn't say

Answer

I don't know

Answer

400%

Question 15

What is r, the decay rate, for the function: f(x) = 800(0.85)^x?

Accepted Answer

0.15

Answer

800

Answer

0.85

Answer

x

Question 16

The student council makes an initial investment in a savings account that earns interest. The value of the savings account after m months is determined by the function v(m) = 2,000(1.005)^m. What is the interest rate of the savings account?

Accepted Answer

.5%

Answer

2,000

Answer

1.005

Answer

.005

Question 17

What is a, the initial amount, for the function: f(x) = 800(0.85)^x?

Accepted Answer

800

Answer

0.85

Answer

0.15

Answer

680

Question 18

Your shiny new boat cost $7650.  The depreciation for your boat is 14% per year. Estimate the value of your vehicle in 3 years. What is the rate of change, the B variable?

Accepted Answer

.86

Answer

0.14

Answer

14

Answer

1.14

Question 19

In an exponential function, what does the 'a' represent?

Accepted Answer

Y-INTERCEPT

Answer

SLOPE

Answer

RATE OF CHANGE

Answer

COMMON RATIO

Question 20

What is the growth factor of f(x) = 4(3)^x

Accepted Answer

3

Answer

4

Answer

1

Answer

x

Question 21

What is a, the initial value, for the function: f(x) = 300(1.16)^x?

Accepted Answer

300

Answer

1.16

Answer

.16

Answer

x

Question 22

If the value B is greater than 1, what type of exponential function is represented?

Accepted Answer

growth

Answer

decay

Question 23

What is the common ratio?

Accepted Answer

1/3

Answer

5

Answer

x

Answer

y

Question 24

What is the y-intercept?

Accepted Answer

5

Answer

1/3

Answer

x

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