Use the discriminant to determine the number of solutions of the quadratic equation.9x2 + 12x + 4 = 0

A. no real solution
B. 1 real solution
C. 2 real solutions

Answer: B

Mathematics

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A.
B.
C.
D.

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A.
B. 2
C.
D.

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A. Slope: - 

B. Slope: 

C. Slope: - 

D. Slope: 

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Show that the function  is concave upward wherever it is defined.

What will be an ideal response?

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