SOLUTION: find the vertex and x-intercepts of the parabola described by the equation: y=(x+12)(x-2)

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Question 82662: find the vertex and x-intercepts of the parabola described by the equation:
y=(x+12)(x-2)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find the vertex and x-intercepts of the parabola described by the equation:
y=(x+12)(x-2)
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If you let y=0 you find the x-intercepts at x=-12 and x=2.
The x-value of the vertex is half way between -12 and 2 or
at -5,
The y-value is f(-5)=(-5+12)(-5-2) = 7*-7 = -49
Vertex at (-5,-49)
graph%28400%2C300%2C-15%2C10%2C-55%2C10%2C%28x%2B12%29%28x-2%29%29
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Cheers,
Stan H.