Question

Graph the quadratic y=4x2+3x−8 . What is the vertex of this quadratic?(1 point)Responses(1.088,0) left parenthesis 1.088 comma 0 right parenthesis(0,−8) left parenthesis 0 comma negative 8 right parenthesis(−1.838,0) left parenthesis negative 1.838 comma 0 right parenthesis(−0.375,−8.563)

Answer 1

Vertex x = -b/(2a) = -3/(2·4) = -3/8 = -0.375.
y = 4(-0.375)^2 + 3(-0.375) - 8 = -8.5625 ≈ -8.563.

So the vertex is (-0.375, -8.563).