Give the focus, directrix, and axis for the parabola.y2 = -20x
A. (0, -5), y = 5, y-axis
B. (-5, 0), x = 5, x-axis
C. (5, 0), x = -5, x-axis
D. (-5, 0), y = 5, y-axis
Answer: B
You might also like to view...
Give the coordinates of the point described on the unit circle.The reflection of the point 
across the origin
A. 
B. 
C. 
D. 
With a = 10, b = 3 and B = 50ø, find the sin A.
a b ÄÄÄÄÄ = ÄÄÄÄÄ sin A sin B a. 0.545 b. 2.55 c. 7.25
Answer the following statement(s) true (T) or false (F)
1. A system of two linear equations has exactly one solution. 2. If three vertices of a parallelogram are (0, 0), (2, 0) and (5, 4), then the fourth vertex is (7, 4). 3. If three of the vertices of a rectangle are (-a, 0), (a, 0) and (-a, b), then the fourth vertex is (a,-b).
Determine whether the trinomial is a perfect square trinomial.100x2 - 40xy + 4y2
A. Yes B. No