SOLUTION: Calculate the discriminant to determine the number of real roots. y = x2 + 3x + 9 How many real roots does the equation have? one real root two real roots no real roots

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Calculate the discriminant to determine the number of real roots. y = x2 + 3x + 9 How many real roots does the equation have? one real root two real roots no real roots       Log On


   

Question 942624: Calculate the discriminant to determine the number of real roots.
y = x2 + 3x + 9
How many real roots does the equation have?
one real root
two real roots
no real roots
no solution to the equation
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Calculate the discriminant to determine the number of real roots.
y = x2 + 3x + 9
D = b^2-4ac
D = 3^2 - 4*1*9 = 9-36 = -27
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Since D is negative the equation has no Real roots
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Cheers,
Stan H.
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How many real roots does the equation have?
one real root
two real roots
no real roots
no solution to the equation