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 points to gra

Algebra ->  Graphs -> 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 points to gra      Log On


   

Question 248987: 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 points to graph the function. Show your work;
f(x) = -x2 + 2x - 1
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
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 points to graph the function. Show your work;
f(x) = -x^2 + 2x - 1
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a = -1 ; b = 2 ; c = -1
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x = [-2 +- sqrt(4 - 4*-1*-1)]/-2
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x = [-2 +- sqrt(0)]/-2
x = 1 with multiplicity two
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graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x%5E2%2B2x-1%29
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Cheers,
Stan H.