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F(x)=-x^2 +4x+5 Find the vertex
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1 vote
F(x)=-x^2 +4x+5

Find the vertex

User Chrisofspades
by
8.4k points

1 Answer

2 votes

Vertex formula: -b/2a

b=4

a=-1

-4/2(-1)

= -4/-2

= 2

Plug 2 for x in the equation, and you will get y = 9

Vertex: (2,9)

User BlazeFast
by
8.0k points
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