SOLUTION: Using the discriminant, determine the number of x-intercepts the graph of the equation will have. Do not graph the equation.
y = -5x^2 + 4x - 1
Question 247712: Using the discriminant, determine the number of x-intercepts the graph of the equation will have. Do not graph the equation.
y = -5x^2 + 4x - 1 Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! y = -5x^2 + 4x - 1
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a = -5
b = +4
c = -1
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Discriminant = b^2 - 4ac = 16 - 20
Disc <0 --> no real solutions, no crossing of the x-axis.
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I might have graphed it, but you can't prove it.
