Exponential Functions

1.

Multiple Choice

1 min

1 pt

What type of function is f(x)=2(1/7)^x ?

Exponential Growth

Linear

Exponential Decay

None of the Abovee

2.

Multiple Choice

5 mins

1 pt

What type of function is y = 7(5/4)^x? What is growth/decay factor; increase/decrease rate of change?

Exponential Growth; 5/4; 1/4

Exponential Decay; 5/4; 1/4

Exponential Growth; 1/4; 5/4

Exponential Decay; 1/4; 5/4

3.

Multiple Choice

1 min

1 pt

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

SLOPE

RATE OF CHANGE

Y-INTERCEPT

COMMON RATIO

4.

Multiple Choice

1 min

1 pt

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

300

1.16

.16

x

5.

Multiple Choice

30 sec

1 pt

Is this exponential growth or decay?

Growth

Decay

6.

Multiple Choice

1 min

1 pt

Given y=3^xdetermine the y-intercept

(0,1)

(0,3)

No Y-intercept

y=1

7.

Multiple Choice

45 sec

1 pt

Is this exponential growth or decay? What is the growth/decay factor? what is the increase/decrease rate of change?

Growth; 1/5; 4/5

Decay; 1/5; 4/5

Growth; 4/5; 1/5

Decay; 4/5; 1/5

8.

Multiple Choice

30 sec

1 pt

Which does y= 2(.5)^xrepresent? What is growth/decay factor; increase/decrease rate of change?

Exponential Growth; 2; 0.5

Exponential Decay; 0.5; 0.5

Exponential Decay; 2; 0.5

Exponential Growth; 0.5; 0.5

9.

Multiple Choice

30 sec

1 pt

What is the initial value of the situation represented by f(x)=0.05(2)^x?

0.05

2

0.1

1

10.

Multiple Choice

30 sec

1 pt

What is the growth/decay factor of the situation represented by f(x)=10(0.3)^x?

10

0.3

1

3

11.

Multiple Choice

30 sec

1 pt

Is the following function and example of growth or decay?

f(x)=2(0.85)^x

What is growth/decay factor; increase/decrease rate of change?

Exponential Decay; 0.85; 0.15

Exponential Growth; 2; 0.85

Exponential Decay; 0.15; 0.85

Exponential Decay; 2, 0.85

12.

Multiple Choice

30 sec

1 pt

Is the following function an example of decay or growth?

f(x) = 2(1.25)^x

What is growth/decay factor; increase/decrease rate of change?

Exponential Growth; 1.25; 0.25

Exponential Decay; 0.25; 1

Exponential Growth; 0.25; 1.25

Exponential Decay; 2; 1.25

13.

Multiple Choice

30 sec

1 pt

Growth; y=0; (0,1)

Decay; y=0; (0,1)

Growth; x=0; (0,1)

Decay; y=0; (1, 0)

14.

Multiple Choice

30 sec

1 pt

Growth; y=-1, (0, 0)

Decay; x=-1, (0, 0)

Growth; x=-1, (0, 0)

Decay; y=-1, (0, 0)

15.

Multiple Choice

30 sec

1 pt

Decay; y=4; (0, 5)

Decay; x=4; (0, 5)

Growth; y=4; (0, 5)

Growth; y=4; (5, 0)

16.

Multiple Choice

30 sec

1 pt

Decay; y= -3; (0, 2)

Decay; y= -3; (0, 3)

Decay; x= -3; (0, 2)

Growth; y= -3; (0, 2)

17.

Multiple Choice

30 sec

1 pt

y>-3

y>0

y<5

y<0

18.

Multiple Choice

30 sec

1 pt

y>1

y>2

y>3

y<1

19.

Multiple Choice

30 sec

1 pt

Decay; y=0; (0,1)

Decay; x=0; (0,1)

Growh; y=0; (0,1)

Decay; x=0; (1,0)

20.

Multiple Choice

30 sec

1 pt

y>-4

y>4

y<-4

y<4

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