Find the vertex and directrix of the parabola.
A. vertex: 
directrix: y=1
B. vertex: 
directrix: y=12
C. vertex: 
directrix: y=6
D. vertex: 
directrix: y=-1
E. vertex: 
directrix: y=-7
Answer: E
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Solve the problem.Through how many radians does the minute hand of a clock rotate in 32 minutes?
A. 1.7 B. 0.53 C. 3.4 D. 200
Provide an appropriate response. Solve this system of equations using the addition method:y = x + 2y = x - 2
A. (2,2) B. (-2,2) C. inconsistent; no solution D. dependent; many solutions
Find the x- and y-intercepts. If no x-intercepts exist, state so.y = -x2 + 5x - 18
A. No x-intercepts, (0, -18)
B. 
, (0, -18)
C. No x-intercepts, (0, 18)
D. 
, (0, 18)
Find the length of the third side of the right triangle.Round to the nearest thousandth, if necessary.
A. b = 15 mi B. b = 14 mi C. b = 12 mi D. b = 11 mi