Quadractic Functions
posted by Carmen on .
Please check my answers.
Find the xintercepts (if any) for the graph of the quadratic function.
1.f(x) = (x + 2)2  4
I got (0,0) and (4,0)
Find the yintercept for the graph of the quadratic function.
5.y + 9 = (x + 3)2
I got (0,0)
Find the domain and range of the quadratic function whose graph is described.
7.The vertex is (1, 15) and the graph opens up.
I got domain: (infinity, pos.infinity)
range: [15, pos. infinity)

correct