Which function represents a vertical stretch of an

exponential function?

y= 2x

y=3•2^x

y= 2^3x

SECOND OPTION.

Step-by-step explanation:

Below are shown some transformations for a function f(x):

If and , then the function is stretched vertically by a factor of .

If and , then the function is compressed vertically by a factor of .

By definition Exponential function have the following form:

Where

Based on the explained above, you can conclude that the function is an exponential function and it is stretched vertically by a factor of 3 ().

14

step-by-step explanation:

14 x 3 = 42