Find the vertex of the parabola.

Question

y = -2x2 + 12x - 13

Answer 1

Use the equation vertex=-b/2a.

b would be 12
a would be -2

That gets you the x value of the vertex, which is 3. Plug in 3 for x now to get y.

y=-2(3)^2+12(3)-13

y=36+36-13

y=59.

Your vertex is (3,59).