Question

Which of the following tables shows that y=kf(x)
results in the parent function y=|x+4|
being vertically stretched by a k factor of 3?(1 point)

This table displays values of x and their corresponding y values based on the function y=kf(x)
x y=kf(x)

0 4
1 5
2 6

This table displays values of x and their corresponding y values based on the function y=kf(x)
x y=kf(x)

0 12
1 15
2 18

This table displays values of x and their corresponding y values based on the function y=kf(x)
x y=kf(x)

0 −12

1 −15

2 −18


This table displays values of x and their corresponding y values based on the function y=kf(x)
x y=kf(x)

0 1.3
1 1.7
2 2

Answer 1

Use f(x)=|x+4|. For x=0,1,2 we have f=4,5,6. A vertical stretch by 3 gives y=3f(x)=12,15,18.

So the second table (0→12, 1→15, 2→18).