Find the focus and directrix of the parabola with the given equation.4x2 = -3y

A. Focus: , directrix: y = 
B. Focus: , directrix: y = - 
C. Focus: , directrix: y = 
D. Focus: , directrix: x = 


Answer: A

Mathematics

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Determine the type of curve from the given information.A pool table is in the shape of a conic with the property that if a ball sitting at a focus is struck toward the rail, it will head toward the other focus after rebounding from the rail. What type of curve describes the shape of the pool table?

A. Hyperbola B. Ellipse C. Parabola D. None of the above

Mathematics

Write an expression for the general or nth term, an, for the geometric sequence.-1, - , - , - , . . .

A. an = -1n-1 
B. an = -  n-1
C. an = an = -1n-1 
D. an =  n-1

Mathematics

Find all solutions of the equation in the interval [0, 2?).tan2 x = 3

A.
B.
C.
D.

Mathematics

Write a two-variable quadratic equation with a = 4, b = 8, and c = 0.

Mathematics