How do you find the inverse of f(x)=−2x−7−x?
1 Answer
Oct 23, 2015
f−1(x)=−7x−2−x
Explanation:
First, change the term
Then, switch the x and y values. You should get
Next solve for Y
-multiply x on the left side by
-
add
yx to both sides in order to get all the Ys on the same side
-7x=−2y+yx -
factor out the y value from the right side
-7x=y(−2+x) -
divide both sides by
(−2+x)
−7x−2−x=y
Lastly change the term