I'm not sure how to begin attacking this one.
Given the equation
use the Quadratic Formula to solve for
(a) x in terms of y (b) y in terms of x.
Can I get a hint?
That was my first guess as to what he meant, and I did plug those numbers (-1, -4, 1) into the Quadratic Formula, and got the answer . However, this is nowhere near close to the book's answers of
or
so I'm no closer in understanding.
Am I supposed to plug the output of the Quadratic Formula in wherever y appears?