Question 1017192
y=2x^2+12x-17
vertex is at x=-b/2a and that is -12/4= -3
x= -3, y=18-36-17= -35
vertex is at (-3,-35)
y=2(x+3)^2-35
That is 2(x^2+6x+9)-35=2x^2+12x-17
{{{graph(300,200,-10,10,-50,10,2x^2+12x-17)}}}