Question

find the x-intercepts of the parabola with vertex (-4 2) and y- intercept (0,-30)

Answer 1

well the vertex form is

y = a(x +4)^2 + 2

substitute the point on the curve (0, 30) to find a

then expand, collect like terms and factor

Answer 2

oops the point should be (0, -30) that is substituted.

Answer 3

you may need the general quadratic formula to find them.

Answer 4

if necessary round to the nearest hundredth (x1y1),(x2,y2) that's how the final answer should be written