Find an equation of a parabola satisfying the given conditions.Focus (-3, 0), directrix x = 3

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


Answer: D

Mathematics

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Write an English phrase that would translate into the given mathematical expression.4(t + 9)

A. Four times the sum of a number t and 9 B. Four times a number t, increased by 9 C. Four more than the sum of a number t and 9 D. The sum of a number t and 9

Mathematics

Solve the equation. = 9

A. {-15} B. ? C. {-3, 15} D. {3, 15}

Mathematics

Solve the equation.x = 3 + x

A. {45} B. {-90} C. {-45} D. {90}

Mathematics

Find the foci of the given hyperbola.x2 - y2 = 8

A. (, 0), (-, 0)
B. (4, 0), (-4, 0)
C. (0, 4), (0, -4)
D. (2, 0), (-2, 0)

Mathematics