Question

What is the inverse of this quadratic function?
y=4-x^2+3x,,, thx

Answer 1

just plug y in for x and x in for y; then solve for y

Answer 2

x=4-y^2+3y
x=-y^2+3y+4
0=-y^2+3y-x+4
But now what?

Answer 3

solve for y now...
from that last line, can you solve for y? that will be your inverse. but also consider the domain for f^-1(x) now....