Question

Let f(x)=(x+2)2.

Answer 1

Since you are essentially multiply the y value of f(x) by 3, you are stretching it vertically by a factor of 3.

Answer 2

Answer:

A. It is stretched vertically by a factor of 3.

Step-by-step explanation:

Given are two functions

f and g

$f(x) = (x+2)^2$

i.e. f is a parabola with vertex at (-2,0) open up

$g(x) = 3(x+2)^2$

This is also a parabola with vertex at (-2,0) open up

g(x) = 3 f(x)

This means f(x) is smaller vertically than g(x)

Or f(x) is stretched vertically by a factor of 3 to get g(x)

Hence option A is true.

A. It is stretched vertically by a factor of 3.