Solve the equation.4x2 - 5x - 9 = 0

A. x = , -1
B. x = , 1
C. x = , 0
D. x =, -1

Answer: D

Mathematics

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Find f"(x) for the function.f(x) = 

A. - (2x - 6)-5/3
B. - (2x - 6)-4/3
C. 48(2x - 6)-5
D. - (2x - 6)-5/3

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Graph the function.y = 2 sec|x| 

A.

B.

C.

D.

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Simplify the expression.8b - 6b + 2

A. -2b + 2 B. 2b + 2 C. 4b D. 14b + 2

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Find the coordinates of the vertex for the parabola defined by the given quadratic function.f(x) = (x + 4)2 + 9

A. (-4, 9) B. (9, -4) C. (-9, 4) D. (9, -16)

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Mathematics