SOLUTION: How many times does the parabola y=4x^2-12x+9 intersect the x-axis?

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Question 360649: How many times does the parabola y=4x^2-12x+9 intersect the x-axis?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many times does the parabola
y=4x^2-12x+9 intersect the x-axis?
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Check the determinant.
b^2-4ac = 12^2-4*4*9 = 0
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The parabola touches the x-axis at x = -b/2a = 1.5
but does not pass thru it.
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graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C4x%5E2-12x%2B9%29
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Cheers,
Stan H.