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

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 grap      Log On


   

Question 299969: 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) = 3x^2
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
x-intercepts occur where f%28x%29+=+0
The quadratic equation is
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
when the equation is in the form
f%28x%29+=+ax%5E2+%2B+bx+%2B+c
a+=+3
b+=+0
c+=+0
x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A3%2A0+%29%29%2F%282%2A3%29+
x+=+sqrt%280%2F6%29
x+=+0
The only x-intercept is at x+=+0