Question

Find the y-intercept of the following function:
g(x) = - x2 + 6x - 8

Answer 1

x^2 + 6x - 9 = 0, solve for x and you're good.

Answer 2

i'm not getting it

Answer 3

Well all you have to do is factor out two equations that equal the first one.It's going to be something like (x + some number) * (x - some number).

Answer 4

Wait, sorry. The Y incep is going to be the number at the end, so look at the graph of it and you can see how it works.

http://www.wolframalpha.com/input/?i=x%5E2+%2B+6x+-+8

Answer 5

Sorry, I've been doing too many factoring problems lately.

Answer 6

thanks! cool site.

Answer 7

It's my favorite way to cheat at math homework. It does everything an then some.

Answer 8

awesome