SOLUTION: Use the quadratic formula to determine the x intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting point to graph

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Use the quadratic formula to determine the x intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting point to graph      Log On


   

Question 312491: Use the quadratic formula to determine the x intercepts (if any) of the following function. Then evaluate the function for several values of x, and use the resulting point to graph the function. Show work. fx(x)=1/2x^2
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

x+=+%280+%2B-+0+%29%2F%281%29+
x=0
(0,0) is the first point.
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When +x=0+%2B-+1+ , +y=%281%2F2%29%281%29%5E2=1%2F2
When +x=0+%2B-+2, +y=%281%2F2%29%282%29%5E2=2
When +x=0+%2B-+3, +y=%281%2F2%29%283%29%5E2=9%2F2
Plot the ordered pairs.

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Now connect the points with a parabola.