Question

y = -4* 2x is a reflection of y = -1/4* 2x. T/F?

Answer 1

well, let's find out, let's get the inverse of "y" or f(x), that is, let's get \(\large f^{-1}(x)\)

Answer 2

from
y = -4* 2x

swap the letters about, what do you get?

Answer 3

True?

Answer 4

hmmm.... nope, looks false to me. y = -4*2x ===> y = -8x

swap the letters

x = -8y

solve for y now

y = -x/8

that doesn't look the same as y=-1/4 * 2x which is actually y = -1/2x

Answer 5

yes you're right @robz8