Sign up for FREE

134: Chapter 7b Test

Last updated almost 5 years ago

29 questions

1

1

1

1

1

1

1

Chapter 7b TEST

Question 1

1.

Write an exponential function in the form y=ab^x that goes through points (0,5) and (4, 6480).

Question 2

2.

The population of rabbits on an island is growing exponentially. In the year 1991, the population of rabbits was 9100, and by 1998 the population had grown to 18000.

What is the equation for this situation? Use y=a(b)^x and round b to the ten-thousandth.

Question 3

3.

Using your answer from [2]:

Predict the population of rabbits in the year 2006, to the nearest whole number.

Question 4

4.

Create a parent table for y=(4)^x
Then, graph y=-(4)^{x-4}+5
Be sure to include the asymptote.

1

1

1

1

1

1

1

1

1

1

1

Question 16

16.

Create a parent table for y=3\log_2(x+5)+4
Then, graph it. Be sure to include the asymptote.

1

1

1

1

1

1

1

1

1

1

1

Question 28

28.

In the accompanying table, x represents study time, in hours, and y represents the final test score. Write a logarithmic regression equation for this set of data, rounding all coefficients to the nearest ten-thousandth.

Question 29

29.

Using the equation from [28], estimate how many hours a student studied, to the nearest hour, who scored a 98 on the test.

You can write your work, or take picture of the calculator screen.

If you haven't finished DeltaMath, it is available through this weekend for partial credit.

Question 5

5.

Exponential

Logarithmic

Question 6

6.

Horizontal

Vertical

Question 7

7.

x=

y=

Question 8

8.

Question 9

9.

Question 10

10.

increasing

decreasing

Question 11

11.

Question 12

12.

x\rightarrow -\infty 

x\rightarrow -5

Question 13

13.

y\rightarrow -5 

y\rightarrow \infty 

y\rightarrow -\infty 

Question 14

14.

x\rightarrow \infty 

x\rightarrow -5

Question 15

15.

y\rightarrow -5 

y\rightarrow \infty 

y\rightarrow -\infty 

Question 17

17.

Exponential

Logarithmic

Question 18

18.

Horizontal

Vertical

Question 19

19.

x=

y=

Question 20

20.

Question 21

21.

Question 22

22.

increasing

decreasing

Question 23

23.

Question 24

24.

x\rightarrow -\infty 

x\rightarrow -8

Question 25

25.

y\rightarrow -8 

y\rightarrow \infty 

y\rightarrow -\infty 

Question 26

26.

x\rightarrow \infty 

x\rightarrow -8

Question 27

27.

y\rightarrow -8 

y\rightarrow \infty 

y\rightarrow -\infty 