What is the vertex of the graph - 2x^2+8x-3

(2,5)

Step-by-step explanation:

The vertex of a quadratic equation is equal to - b/2a:

-8/2 (-2)

-8/-4

2

Plug x=2 into the function:

y=-2 (2) ^2+8 (2) - 3

y=-2 (4) + 16-3

y=-8+13

y=5

So the vertex of the graph is (2,5)

(2,5) is the answer I took the test today