SOLUTION: Find the x-intercepts. y = x^2 – 3x – 1

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Question 89280: Find the x-intercepts.
y = x^2 – 3x – 1
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
Y=X^2-3X-1
0=X^2-3X-1
USING THE QUADRATIC EQUATION: x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ WE GET:
X=(3+-SQRT{-3^2-4*1*-1])/2*1
X=(3+-SQRT9+4])/2
X=(3+-SQRT13)/2
X=(3+-3.6)/2
X=(3+3.6)/2
X=6.6/2
X=3.3 ANSWER.
X=(3-3.6)/2
X=-.6/2
X=-.3 ANSWER.
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C++y+=+x%5E2+-3x+-1+%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = x^2 -3x -1).