Find the vertex, focus, and directrix of the parabola with the given equation.(y - 1)2 = 16x
A. vertex: (0, 1)
focus: (-6, 1)
directrix: x = -4
B. vertex: (0, 1)
focus: (4, 1)
directrix: x = -4
C. vertex: (0, -1)
focus: (6, -1)
directrix: x = -2
D. vertex: (1, 0)
focus: (4, 1)
directrix: x = -3
Answer: B
You might also like to view...
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 2xy2i + 2x2yj + 8xyk ; D: the region cut from the solid cylinder x2 + y2 ? 4 by the planes z = 0 and
A. 64? B. 256? C. 512? D. 128?
Solve the problem. Use ? ? 3.14 when necessary.Find the volume of a triangular pyramid with base area 22 ft2 and height 8 ft. Find the result to the nearest unit.
A. 59 ft3 B. 57 ft3 C. 176 ft3 D. 88 ft3
Add.(4a4 - 9a3) + (6a4 + 3a3)
A. 4a7 B. 10a4 - 6a3 C. 10a8 - 6a6 D. 4a14
Find the value of the permutation.P(9, 9)
A. 2 B. 1 C. 362,880 D. 181,440