Find the equation in standard form of the parabola described.The focus has coordinates (-15, 0), and the equation of the directrix is x = 15.

A. y2 = -60x
B. y2 = 60x
C. x2 = -60y
D. y2 = -15x


Answer: A

Mathematics

You might also like to view...

Solve the problem.Find the magnitude of the torque in foot-pounds at point P for the following lever: = 3 in. and  = 20 lb

A. 9.72 ft-lb B. 4.53 ft-lb C. 2.11 ft-lb D. 60 ft-lb

Mathematics

Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.- 

A. -6xy
B. -6xy
C. 6xy
D. xy

Mathematics

Divide. Write the answer in simplest form. ÷ 

A.
B.
C.
D.

Mathematics

Find the expected value.A car agency has found daily demand to be as shown in the table.Find the expected number of customers.

A. 9 B. 12 C. 10 D. 2

Mathematics