Find the focus and directrix of the parabola.- 
x2 = y
A. F: (0, -1); D: y = -1
B. F: (0, 1); D: y = -1
C. F: (0, -1); D: y = 1
D. F: (-2, 0); D: x = 1
Answer: C
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Solve. Express your answer as a signed number.In a statistics course, you need to carry out the following computation: 
. Find this number, rounded to the nearest hundredth.
A. 0.42 B. 0.29 C. 0.33 D. 1.9
Provide an appropriate response.Suppose that a polynomial function P is defined in such a way that 
and P(7) = 3. Can we be certain that there is no zero between -1 and 7? Explain using a graph.
What will be an ideal response?
Solve the problem.Two angles are supplementary if the sum of their measures is 180°. The measure of the first angle is 42° less than four times the second angle. Find the measure of each angle.
A. first angle = 135.6° second angle = 44.4° B. first angle = 110.4° second angle = 69.6° C. first angle = 69.6° second angle = 110.4° D. first angle = 44.4° second angle = 135.6°
Add.(5x7 + 3x6 - 4x5 - 6) + 
A. 14x7 - 2x6 + 3x5 + 12 B. 6x36 - 8 C. 14x14 - 2x12 - 6x10 - 8 D. 14x7 - 2x6 - 6x5 - 8