SOLUTION: What would be the vertex of the following: f(x)=x^2+10x+9

Algebra ->  Functions -> SOLUTION: What would be the vertex of the following: f(x)=x^2+10x+9       Log On


   

Question 423688: What would be the vertex of the following:
f(x)=x^2+10x+9
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What would be the vertex of the following:
f(x)=x^2+10x+9
-----------------
The line of symmetry is x = -b/2a
x = -10/2 = -5
The vertex is (-5,f(-5))
= (-5,-16)