Question

Hi there! I found a website that gives me different kind of problems to solve, but I am stuck on this one :) Can you help me please? Thanks!

Answer 1

C. `g(x)=42x` (as indicated)

Explanation:

If `k(x)` is `f(x)` stretched by a factor of `7`
then `k(x)=7f(x)`.

If `j(x)` is `k(x)` reflected in the x-axis
then `j(x)=-k(x)`

Note that as given
`g(x)=j(k(x))=-(k(x))=-7f(x)=(-7)*(-6x)=42x`