Quiz about 6.1-6.3 Quiz Review

Question 1

$$Simplify,\ please:\ \left(-2\right)^0$$

Accepted Answer

1

Answer

-2

Answer

1/2

Answer

0

Question 2

$$Simplify,\ please:\ 3^{-2}$$

Accepted Answer

1/9

Answer

-6

Answer

1/6

Answer

-9

Question 3

$$Simplify,\ please:\ \frac{3^{-3}}{8^{-1}}$$

Accepted Answer

8/27

Answer

8/3

Answer

-9/-8

Answer

-27/-8

Question 4

$$What\ the\ simplified\ version?\ \left(x^{-7}\right)^4$$

Accepted Answer

$$\frac{1}{x^{28}}$$

Answer

$$x^{-28}$$

Answer

$$x^{-11}$$

Answer

$$\frac{1}{x^{-28}}$$

Question 5

Evaluate the function for f(-2)

$$f\left(t\right)=\left(50\right)^t$$

Accepted Answer

f(-2)=1/2500

Answer

f(-2)=-100

Answer

f(-2)=2500

Answer

f(-2)= 25

Question 6

Evaluate the function for f(4)

$$f\left(x\right)=2\left(.50\right)^x$$

Accepted Answer

f(4) = .125

Answer

f(4) = 4

Answer

f(4) = .0625

Answer

f(4) = 1

Question 7

Determine if this is a growth or decay function: $$f\left(t\right)=30\left(.65\right)^t$$

Accepted Answer

Exponential Decay

Answer

Decay

Answer

Exponential Growth

Answer

Growth

Question 8

Exponential Growth or Decay? What is the percent change? $$f\left(x\right)=0.35\left(1.05\right)^x$$

Accepted Answer

Growth

5% increase

Answer

Growth

105% increase

Answer

Decay

105% increase

Answer

Decay

5% decrease

Question 9

Linear, Exponential, or Neither?

Accepted Answer

Linear

Answer

Exponential Growth

Answer

Neither

Answer

Exponential Decay

Question 10

Linear, Exponential, or Neither?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

Neither

Question 11

A social media website had 350,000 followers in 2010. The number of followers increased by 2% each year. What is the exponential function that represents our scenario?

Accepted Answer

$$f\left(t\right)=\ 350,000\left(1.02\right)^t$$

Answer

$$f\left(t\right)=350,000\left(.02\right)^t$$

Answer

$$f\left(t\right)=350,000\left(.98\right)^t$$

Answer

$$f\left(t\right)=350,000\left(2\right)^t$$

Question 12

What could x be in this equation? $$x^2=49$$

Accepted Answer

7 or -7

Answer

7

Answer

-7

Answer

no answer possible

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