Hi
Graph the function
Note: vertex form of a parabola, 
where(h,k) is the vertex
f(x)= -2x^2 + 4x + 3 |y-intercept is (0,3)
f(x)= -2[(x-1)^2 -1] + 3
f(x)= -2(x-1)^2 +2 + 3
f(x)= -2(x-1)^2 + 5 | V(1,5), Parabola opens downward a = -2 < 0
x-intercepts: x = 1 ± sqrt(5/2) x = 1 ± 1.58
ewatrrr@aol.com
private/pay tutoring Inquiries only, please
