Find the intervals on which the function is continuous.y = 
A. discontinuous only when x = -32
B. discontinuous only when x = -4
C. discontinuous only when x = 24
D. continuous everywhere
Answer: D
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Use a graphing calculator to graph the equation and identify the x-intercepts. If your answers are not exact, round to the nearest tenth.y = x2 + 5.2x + 5.3
A. x-intercepts: (-3.8, 0) and (-1.4, 0)
B. x-intercept: (0, 5.2)
C. x-intercept: (0, 5.3)
D. x-intercept: (1.4, 0) and (3.8, 0)
Solve.One end guy wire is attached to the top of a 17-foot pole and the other end is anchored into the ground 14 feet from the base of the pole. Find the length of the guy wire. Round to the nearest tenth foot.
14 feet
A. 31 feet B. 21.4 feet C. 22 feet D. 31.6 feet
An object of mass m (in grams) attached to a coiled spring with damping factor b (in grams per second) is pulled down a distance a (in centimeters) from its rest position and then released. Assume that the positive direction of the motion is up and the period is T (in seconds) under simple harmonic motion. Develop a model that relates the distance d of the object from its rest position after t seconds.m = 30, a = 10, b = 0.55, T = 6
A. d = -10e-0.55t/60 cos 
B. d = -10e-0.55t/60 cos 
C. d = 10e0.55t/60 cos 
D. d = 10e-0.55t/60 cos 
Graph the conic.r = 
A. 
B. 
C. 
D. 