Find an equation of the parabola described.Directrix the line y = 3; vertex at (0, 0)

A. y = - x2
B. y = -12x2
C. x = - y2
D. x = 3y2


Answer: A

Mathematics

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A. (1, 1) B. (-1, -1) C. (1, 0) D. (-1, 1)

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A. 3 B. 0 C. -1 D. -3

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Graph the pair of parametric equations by hand, using values of t in [-2,2]. Make a table of t-, x-, and y-values, using t = -2, -1, 0, 1, and 2. Then plot the points and join them with a line or smooth curve for all values of t in [-2,2]. Do not use a calculator.x = -t - 1, y = 2t - 3 

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Use the Quadratic Formula to solve for . ? ?

A.
B.
C.
D.
E.

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