Exponential Decay Functions

Question 1

Use the graph of the exponential growth functionf(x) = a(2x) to determine which statement is true.

Revolt · Accepted Answer

f(0) = 3 when a = 3.

Question 2

A stretch by a factor of for the exponential decay function f(x)= a occurs when a =.

Revolt · Accepted Answer

11/3

Question 3

A shrink by a factor of for the exponential growth function f(x)= a(7)x occurs when a =.

Revolt · Accepted Answer

1/3

Question 4

A shrink by a factor of for the exponential decay function f(x)= a occurs when a =.

Revolt · Accepted Answer

2/5

Question 5

A stretch by a factor of 2 for the exponential growth function f(x)= a occurs when a =.

Revolt · Accepted Answer

2

Question 6

f(x) =()x

Revolt · Accepted Answer

0.5

Question 7

A patient is given a 50 mg dose of medicine. The medicine's effectiveness decreases every hour at a constant rate of 40%. What is the exponential decay function that models this scenario? How much medicine will be left in the patient's system after 2 hours?

Revolt · Accepted Answer

f(x) = 50(0.60)x; 18 mg

Question 8

f(x) =()x

Revolt · Accepted Answer

0.25

Exponential Decay Functions Answers

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