
To find

, (the inverse of the function) you need to first replace the f(x) with y...

Then switch the x and the y.

Solve for y.

Take the square root of each side...
Fourteen is the correct answer
The standard form of the quadratic equation is ax^2 + bx + c. In vertex form, it's y = a(x – h)2 + k.
The graph of a quadratic equation is a parabola, which looks like a u. If <em>a</em> is negative then it's an upside down u.
Greater then or less then