Graph the line described.through (1, 9); undefined slope
A. 
B. 
C. 
D. 
Answer: C
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If s denotes the length of the arc of a circle of radius r subtended by a central angle ?, find the missing quantity.r = 
feet, s = 16 feet, ? = ?
A. 
radians
B. 40 radians
C. 40°
D. 
°
Simplify the fraction, if possible.
A. 1 B. 24 C. 0 D. undefined
Find the amplitude, period or phase shift.Find the amplitude of y = -5 cos (4x - ?).
A. -20 B. 5 C. 4 D. ?
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 6.25 inches tall and stand 50 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 10 inches from the lowest point of the cable.
A. 4 in. B. 1 in. C. 1.2 in. D. 0.8 in.