Question

Which function is a horizontal compression of its parent function f(x)=x^7 by a factor of 4?

Answer 1

The function given to us is : $f(x) = {(x)^7}$

We want to see which function represents the horizontal compression of f(x) by a factor of 4

We can compress a function horizontally by multiplying the x by a constant number, in this case multiplying x by 4

So horizontal compression of $f(x) = {(4*x)^7}$

This matches with the option B = $r (x) = {(4*x)^7}$

Hence, your answer (B) is correct.

Answer 2

B is the correct answer. If you're doing the quickcheck its CACB