Question

If you vertically stretch the exponential function, f(x)=2^x by a factor of 3, what is the equation of the new function?

A. g(x)=2•3^x

B. g(x)=2^3x

C. g(x)=1/3•2^x

D. g(x)=3•2^x

Answer 1

The correct answer is D.

Explanation:

just multiply the original function by the factor 3.