Question

what is -(x-4)^2-4

Answer 1

Firstly expand (x-4)^2, then multiply the terms by -1 (to cover the minus side), then simplify.

Answer 2

i mean how do i graph in vertex form

Answer 3

Oh, you meant -(x-4)^2-4 = 0.

Remember the standard form of quadratic equations: (x - h) + k = 0, where (h, k) is the vertex. In this case, you can clearly see that (4, -4) is the vertex.

Answer 4

ok
how do i find the y intercept
do i put it into the equation
like this -(0-4)^2-4
so the y intercept would be -20?