(x) = -2x - 7
y = f(x) = -2x -7
then solve for x:
-2x = y + 7
x = (y+7)/(-2) = (-y-7)/2
rewrite in terms of x:
f^(-1)(x) = (-x-7)/2 Compose the inverse f^(-1) with the function f. then input x.
f^(-1) o f(x) = f^(-1)(-2x-7) = [-(-2x-7) - 7]/2 = [+2x + 7 - 7]/2 = 2x/2 = x
for all values of x
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?