How do you find the equation for the inverse of y=-4x+6y=−4x+6?

1 Answer
Jim G.
May 3, 2018

f^-1(x)=3/2-1/4xf−1(x)=32−14x

Explanation:

"rearrange making x the subject"rearrange making x the subject

rArr-4x+6=y⇒−4x+6=y

rArr-4x=y-6⇒−4x=y−6

rArrx=-1/4(y-6)=3/2-1/4y⇒x=−14(y−6)=32−14y

"the inverse is usually expressed in terms of x"the inverse is usually expressed in terms of x

rArrf^-1(x)=3/2-1/4x⇒f−1(x)=32−14x

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