Question

Consider the following two functions.

Original: f(x)=|x| +1


Final: f(x)=12|x| +12


Which option best describes the change from the original to the final function?

Option #1: a vertical stretch

Option #2: a vertical compression

Option #3: no change

(1 point)
The change is best described by Option #
.

Answer 1

Option #1

Multiplying the original function by 12 (f_final = 12·f_original) scales all y-values by 12, so it's a vertical stretch.