A solar oven uses a parabolic reflector to focus the sun's rays at a point 5 inches from the vertex of the reflector (see figure).
L = 5 inches
?
Write an equation for a cross section of the oven's reflector with its focus on the positive y axis and its vertex at the origin.
A. ?
?
B. 
C. 
?
D. 
E. 
Answer: D
Mathematics
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Convert the measure from degrees to radians. Express your answer as a multiple of ?.60°
A. 
B. 
C. 
D. 
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Use a calculator to solve for x in the given intervaltan ? = 0.7091, 0° ? ? ? 90°
A. 35.34° B. 135.16° C. -45.16° D. 45.16°
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Determine whether the graph of the equation is a circle, parabola, ellipse, or hyperbola. Sketch the graph.x2 + y2 = 36
A. 
B. 
C. 
D. 
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Determine if the relation is a function. Assume x is the independent variable.x - 6y = 9
A. Yes B. No
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