SOLUTION: f(x)= (sqrt)3x-7

Algebra ->  Inverses -> SOLUTION: f(x)= (sqrt)3x-7      Log On


   

Question 312493: f(x)= (sqrt)3x-7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use x,y function notation.
+y=sqrt%283x-7%29+
Interchange the position of x and y and solve for y.
highlight%28x%29=sqrt%283%2Ahighlight%28y%29-7%29
x%5E2=3y-7
x%5E2%2B7=3y
y=%28x%5E2%2B7%29%2F3
This new y is the inverse function,
f%5E%28-1%29%28x%29=%28x%5E2%2B7%29%2F3