Answer:
The vertex of the graph is (2,5)
Step-by-step explanation:
you need to find what a,b and c are:
a=-2 b=8 c=-3
b/2a= 8/2(-2)
x=2
plug x in to the equation x=2 to find y
y=-2(2)^2+8(2)-3= 5
y=5
