What is the equation of the following graph in vertex form?
(-4, 0)
(-2, 0)
(-3,-1)

  y = (x+3)^2 -1

Step-by-step explanation:

The vertex among the given points is (-3, -1). The other two points are symmetrical about this one. For a difference from the vertex of Δx = 1, the y-values are 1 more than at the vertex: (0 -(-1)) = 1. This means the scale factor is 1.

The vertex form is ...

  y = a(x -h)^2 +k

for vertical scale factor a and vertex (h, k). You have a=1, (h, k) = (-3, -1), so your equation is ...

  y = (x +3)^2 -1

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

it would rotate about 180 degrees.