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Graph h(x) = 32(0.45)x. What is the constant percent rate of change of f(x) with respect to x? Does the graph show growth or decay?

45% growth
45% decay
55% growth
55% decay

User Wakandan
by
3.3k points

2 Answers

6 votes

Answer:

55% decay, the other guy is wrong

Explanation:

Trust me

User Louis Coulet
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3.6k points
5 votes

Answer:

(d) 55% decay

Explanation:

You want to know the growth rate and whether it is growth or decay when the growth is described by ...

h(x) = 32(0.45^x)

Exponential growth

An exponential growth equation looks like ...

h(x) = h₀(growth factor)^x

Where the growth factor is ...

growth factor = 1 + growth rate

Growth rate

The given equation tells us the growth factor is 0.45. Then the growth rate is ...

0.45 = 1 + growth rate

growth rate = 0.45 -1 = -0.55 = -55%

The constant percent rate of change is -55%. It is negative, so represents decay (not growth). (Matches choice D.)

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User AuRise
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3.4k points