Question

F(x) = x; vertical stretch by a factor of 2 followed by a translation 1 unit up

Answer 1

f(x)=2(x)+1

This question essentially describes a linear equation in the form y=mx+b. Any x-coordinate (input) into the function is doubled and added to 1. The function will vertically rise up once.

Answer 2

f(x)=2x+1

Explanation:

Use formula:

f(x)=a(x-h)+k

a=shrinking/stretching

h= horizontal translation

left (+)

right (-)

k= vertical translation

left (-)

right (+)