SOLUTION: Find the x-intercept(s) and the coordinates of the vertex for the parabola y=x^2+2x-24 . If there is more than one x-intercept, separate them with commas.

Question 456819: Find the x-intercept(s) and the coordinates of the vertex for the parabola y=x^2+2x-24
. If there is more than one x-intercept, separate them with commas.
Answer by spacesurfer(12) (Show Source): You can put this solution on YOUR website!
This is a simple quadratic equation to find the x-intercepts:

The solutions are x = 4 or -6 and these are the x-intercepts.
The vertex can be found by finding the derivative and setting it equal to 0
If , then , and , then x = -1 and f(-1) = -25.
Hence, the vertex is (-1, -25)
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