Question

What is the vertex of the parabola y=-x^2+4x-5

Vertex= ( , )

Answer 1

Ans: (-2, -9)

Step-by-step explanation:

x-coordinate of the vertex:

x

=

(

−

b

2

a

)

=−42=−2y-coodinate of vertex: y=f(−2)=(−2)2+4(−2)−5=4−8−=−9

Step-by-step explanation: