Find the vertex, focus, and directrix of the parabola with the given equation.(x - 1)2 = 20(y - 4)
A. vertex: (-1, -4)
focus: (-1, 1)
directrix: y = -9
B. vertex: (4, 1)
focus: (4, 6)
directrix: y = -4
C. vertex: (1, 4)
focus: (1, 9)
directrix: y = -1
D. vertex: (1, 4)
focus: (1, -1)
directrix: x = 9
Answer: C
You might also like to view...
Solve the problem.A line from the top of a cliff to the ground passes just over the top of a pole 8.0 ft high and meets the ground at a point 
from the base of the pole. If the point is 99 ft from the base of the cliff, how high is the cliff? Round to the nearest unit.
A. 792 ft B. 8 ft C. 3960 ft D. 158 ft
Make a bar graph to represent the data.Construct a vertical bar graph for the relative frequencies given.
What will be an ideal response?
Provide an appropriate response.Identify the algebraic expression that contains 2 terms.
A. 3(x + 4)
B. 
C. 2x + y - 6
D. 5x - 7
Solve the equation by factoring.(x + 8)(x - 6) = -13
A. {8, -6} B. {5, 7} C. {-7, 5} D. {-8, 6}