Determine whether the quadratic function is written in standard, vertex, or intercept form, and find the values of the associated points.
7.y=3x^2+2x-1
Form:
y-intercept:
Axis of symmetry:
8.y=2(x+1)(x-5)
Form:
x-intercept:
Vertex:
9.y-7=1/4(x-3)^2
Form:
Vertex:
y-intercept: