SOLUTION: how do I find the vertex for X^2-3x-4=0?

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Question 418232: how do I find the vertex for X^2-3x-4=0?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

how do I find the vertex for X^2-3x-4=0? 

by completing the Square and putting into the vertex form

Note: the vertex form of a parabola, y=a%28x-h%29%5E2+%2Bk where(h,k) is the vertex

x^2 - 3x - 4 = 0

 (x-3/2)^2 - 9/4  - 4 = 0

 (x-3/2)^2 - 25/4 = 0  vertex  is Pt(3/2,-25/4)