Exponential Decay Functions — Unit test

Question 1

Which is equivalent to ?

Revolt · Accepted Answer

9

Question 2

Which is equivalent to ?

Revolt · Accepted Answer

RootIndex 4 StartRoot 16 EndRoot Superscript 3 x

Question 3

Which is a stretch of an exponential growth function?

Revolt · Accepted Answer

f(x) =

Question 4

Which explains why the graphs of geometric sequences are a series of unconnected points rather than a smooth curve?

Revolt · Accepted Answer

The domain contains only natural numbers.

Question 5

Tanisha is graphing the function f(x) = 25()x. She begins by plotting the point (1, 15). Which could be the next point she plots on the graph?

Revolt · Accepted Answer

(2, 9)

Question 6

Which value of a in the exponential function below would cause the function to shrink?f(x) = a

Revolt · Accepted Answer

Four-fifths

Question 7

Pherris is graphing the function f(x) = 2(3)x. He begins with the point (1, 6). Which could be the next point on his graph?

Revolt · Accepted Answer

(2, 18)

Question 8

An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the range to include negative numbers?

Revolt · Accepted Answer

A whole number constant could have been subtracted from the exponential expression.

Question 9

Which function represents exponential growth?

Revolt · Accepted Answer

f(x) = 3x

Question 10

What is the rate of increase for the function f(x) = ?

Revolt · Accepted Answer

4

Exponential Decay Functions — Unit test Answers

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