Question 764801
Q: use the quadratic formula to find any x-intercepts on the graph of the equation
y=3x^2+9x-1
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A:

Quadratic Formula:{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
In {{{3x^2+9x-1 = 0}}}, a = 3, b = 9, and c = -1
Using quadratic formula
{{{x = (-9 +- sqrt( 9^2-4*3*(-1) ))/(2*3) }}}
{{{x = (-9 +- sqrt( 93 ))/(6) }}}
The x-intercepts are ({{{(-9 + sqrt( 93 ))/(6) }}}, 0) and ({{{(-9 - sqrt( 93 ))/(6) }}}, 0).