Solve the problem.A building has an entry with the shape of a parabolic arch 20 feet high and 4 feet wide at the base. Find an equation for the parabola if the vertex is placed at the origin of the coordinate system.
A. x2 = -0.2y
B. y2 = -0.8x
C. y2 = -0.2x
D. x2 = -0.8y
Answer: A
Mathematics
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, b = 4
A. y = 
x + 4
B. y = - 
x - 4
C. y = - 
x + 4
D. y = 
x - 4
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Sketch the line with the given slope that passes through the indicated point.Slope is undefined; line passes through the point (10, -6)
A. 
B. 
C. 
D. 
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Draw a sketch of the two graphs described, with the indicated number of points of intersection.A parabola and a hyperbola; one point
A. 
B. 
C. 
D. 
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Evaluate the sum. Round to two decimal places, if necessary.
A. 340 B. 1024 C. 16 D. 256
Mathematics