Question

Identify the vertex for the graph of y = 2x2 + 8x − 3

Answer 1

X = -b/2a
x = -8/4
x = -2
Plug -2 in for x and solve for y
y = 2(-2)^2 + 8(-2) -3
y = 8 -16 -3
y = -11
Vertex (-2, -11)