SOLUTION: Find the vertex of the quadratic function y = x^2 - 8x - 5 by completing a square. Show all your work. I mistakenly took the quadratic function and switched it over to vertex

Algebra ->  Functions -> SOLUTION: Find the vertex of the quadratic function y = x^2 - 8x - 5 by completing a square. Show all your work. I mistakenly took the quadratic function and switched it over to vertex       Log On


   

Question 871243: Find the vertex of the quadratic function y = x^2 - 8x - 5 by completing a square. Show all your work.

I mistakenly took the quadratic function and switched it over to vertex form instead of finding the vertex.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y=x%5E2-8x-5
y=x%5E2-8x%2B16-5-16
y=%28x-4%29%5E2-21
Vertex is (4,-21).