Find the vertex, focus, and directrix of the parabola with the given equation.(x + 4)2 = -4(y - 1)
A. vertex: (-4, 1)
focus: (-4, 0)
directrix: y = 2
B. vertex: (-4, 1)
focus: (-4, 2)
directrix: x = 0
C. vertex: (1, -4)
focus: (1, -5)
directrix: y = -3
D. vertex: (4, -1)
focus: (4, -2)
directrix: y = 0
Answer: A
Mathematics
You might also like to view...
Find the indicated term for the sequence.an = (5n - 3)(3n + 1); a12
A. 2109 B. 1457 C. 1768 D. 2480
Mathematics
Find the derivative of the function.y = (x + 1)2(x2 + 1)-3
A.
B.
C.
D.
Mathematics
Solve the problem.An airplane has an airspeed of 125 km/h. It is to make a flight in a direction of 305° while there is a wind from 210°. What will the airplane's actual direction be?
A. 318° B. 107° C. 283° D. 292°
Mathematics
Find the area of the figure.
A. 56
B. 28
C. 28
D. 56
Mathematics