Question

graph the function. y=-2x^2-12x-21

Answer 1

First, we put the equation into the vertex form:

y = -2(x + 3)^2 - 3

So, we have a parabola opening downward with vertex at (-3, -3) which is also a maximum. No zeros, but with a y-intercept at (0, -21)

Answer 2

THanh You but where dis you get the x+3 from