Quiz about Identifying Exponential Functions Growth and Decay

Question 1

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 2

What type of function is y = 7(5/4)^x?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

None of the above

Question 3

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 4

This is an example of: $$f\left(x\right)=3\left(\frac{5}{2}\right)^x$$

Accepted Answer

Exponential Growth

Answer

Linear Growth

Answer

Linear Decay

Answer

Exponential Decay

Question 5

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 6

Is the following function and example of decay or growth?

f(x)=2(0.85)^x

Accepted Answer

Exponential Decay

Answer

Exponential Growth

Question 7

Graph the exponential function $$y = 2^x$$ . Which of the following statements is true about the graph?

Accepted Answer

The graph passes through the point (0,1).

Answer

The graph is decreasing.

Answer

The graph has an asymptote at $$y = 1$$ .

Answer

The graph intersects the y-axis at $$y = 0$$ .

Question 8

$$y\ =\ a\cdot b^x$$

Accepted Answer

This is an exponential function

Answer

This is a linear functions

Answer

This is a quadratic function

Answer

This is an absolute value functions

Question 9

Pick the equation that is exponential decay

Accepted Answer

y=2000(0.88)

Answer

y=0.5(1.88)

Question 10

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

Accepted Answer

300

Answer

1.16

Answer

.16

Answer

x

Question 11

Does the table represent an exponential function? Explain why.

Accepted Answer

Yes, because the y-values are multiplied by 2 each time.

Answer

No, because the x-values increase by 1 each time.

Answer

Yes, because the y-values are increasing.

Answer

No, because the y-values are decreasing.

Identifying Exponential Functions Growth and Decay

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