Question

Write the quadratic equation in vertex form... y=(2/3)x^2+4x-1?

Answer 1

multiply it in 3/2 ------ > (3/2)y=x^2+6x-(3/2) ---> (3/2)y+ (3/2)+9 =x^2+6x+9

Answer 2

(3/2)y+(21/2)=(x+3)^2

Answer 3

(3/2)(y+7)=(x+3)^2

Answer 4

vertex = (-3,-7)

Answer 5

that's it.