Tell whether the relation is a function.?
A. Function
B. Not a function
Answer: B
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Simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = -4 sin (5t)
A. simple harmonic; 4 m; 
sec; 
? oscillations/sec
B. simple harmonic; -4 m; 
? sec; 
oscillations/sec
C. simple harmonic; 4 m; 
? sec; 
oscillations/sec
D. simple harmonic; -4 m; 5 ? sec; 
oscillations/sec
Factor completely.8x2 - 28x - 16
A. 4(2x - 1)(x + 4) B. prime C. (8x - 4)(x + 4) D. 4(2x + 1)(x - 4)
Graph the hyperbola. Give the coordinates of the center as well as the values of a and b.
- 
= 1
A. center (0, -2), a = 4, b = 3
B. center (0, -2 ) a = 4, b = 3
C. center (-2, 0), a = 4, b = 3
D. center (-2, 0), a = 4, b = 3