SOLUTION: How can you find the solutions of a quadratic equation by looking at a graph. How do you find the vertex?

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Question 330056: How can you find the solutions of a quadratic equation by looking at a graph. How do you find the vertex?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The solutions (the zeros) are the x-values where the function crosses the x-axis (equals zero).
You find the vertex by completing the square and putting the equation into vertex form,y=a%28x-h%29%5E2%2Bk where (h,k) is the vertex.