AP

MATHEMATICS · Multi-part · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

Let

g(x)=7\left(\dfrac{5}{4}\right)^{x}

. (a) Find the exact value of

g(2)

. (b) Evaluate

g(-3)

. (c) Calculate the percentage decrease when

x

changes from

1

-1

. Give your answer correct to the nearest integer.