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 grap
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Question 337017: 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.
f(x) = -2x^2 + 2x - 9 Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website!
-2x^2+2x-9
a= -2, b=2 , c=-9
..
x1= (-2+sqrt(4-72))/2*-2
x1=(-2+sqrt(-68)))/-4
x1=0.5 +sqrt(-68)/4
x2=0.5-sqrt(-68)/4
No x intercepts
Plot values for x you will get a graph as below
