How do you find the equation for the inverse of y=2x+1?
2 Answers
Aug 8, 2017
The inverse is
Explanation:
Our equation is
We need
Therefore. the inverse is
Verification
The inverse of
graph{(y-x)(y-2x-1)(y-x/2+1/2)=0 [-6.24, 6.244, -3.12, 3.12]}
Aug 8, 2017
Explanation:
"rearrange making x the subject"
2x+1=y
rArr2x=y-1
rArrx=1/2(y-1)
"expressing the inverse function in terms of x gives"
f^-1(x)=1/2(x-1)