Question 317502
Find the x-coordinate of the vertex, the y-coordinate of the vertex.

f(x) = -2x^2 + 2x + 3
.
x-coordinate:
x = -b/(2a) 
x = -2/(2 * (-2))
x = -2/(-4)
x = 1/2
.
y-corordinate:
Plug above into equation:
f(x) = -2x^2 + 2x + 3
f(1/2) = -2(1/2)^2 + 2(1/2) + 3
f(1/2) = -2(1/4) + 1 + 3
f(1/2) = -1/2 + 1 + 3
f(1/2) = -1/2 + 4
f(1/2) = -1/2 + 8/2
f(1/2) = 7/2
y = 7/2