Find the vertex, focus, and directrix of the parabola.y2 = -20x
A. Vertex: V(0, 0); focus: F(0, -5); directrix: y = 5
B. Vertex: V(0, 0); focus: F(-5, 0); directrix: y = 5
C. Vertex: V(0, 0); focus: F(5, 0); directrix: x = -5
D. Vertex: V(0, 0); focus: F(-5, 0); directrix: x = 5
Answer: D
You might also like to view...
Solve the absolute value equation.|2x + 2| = 22
A. x = 10 B. x = -12 C. x = -12, 10 D. x = -10, 12
Add or subtract. Simplify the answer.17
+ 13
A. 17
B. 29
C. 31
D. 30
How many local maxima and minima does the polynomial have?
?
?
A. 2 maxima and 2 minima B. 4 maxima and 5 minima C. 1 maxima and 1 minima D. 1 maxima and 4 minima E. 4 maxima and 1 minima
Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (4, -6)
A. (x - 6)2 + (y + 4)2 = 36 B. (x + 6)2 + (y - 4)2 = 36 C. (x + 4)2 + (y - 6)2 = 6 D. (x - 4)2 + (y + 6)2 = 6