Determine whether the slope of the line is positive, negative, zero, or undefined.
A. negative
B. undefined
C. zero
D. positive
Answer: D
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Use the fundamental identities to find the value of the trigonometric function.Find cot ? if sec ? = - 
and ? is in quadrant II.
A. 
B. - 
C. 
D. - 
Solve the problem.Rachel's bus leaves at 6:15 PM and accelerates at the rate of 3 meters per second per second. Rachel, who can run 6 meters per second, arrives at the bus station 6 seconds after the bus has left. Find parametric equations that describe the motions of the bus and Rachel as a function of time, and simulate the motion of the bus and Rachel by simultaneously graphing these equations.
A. Bus: x1 = 3t2, y1 = 1;
Rachel: x2 = 1(t - 6), y2 = 3
B. Bus: x1 = 
t2, y1 = 1;
Rachel: x2 = 6(t - 6), y2 = 3
C. Bus: x1 = 
t2, y1 = 1;
Rachel: x2 = 6(t + 6), y2 = 3
D. Bus: x1 = 3t2, y1 = 1;
Rachel: x2 = 6(t - 6), y2 = 3
Find the range of the quadratic function.f(x) = 2x2 + 3x - 9
A. [- 
, ?)
B. (-?, - 
]
C. (-?, - 
]
D. [- 
, ?)
Solve.2x2 + 9x = -2 + 15x
A. 
, 
B. 3 + 
, 3 - 
C. -3 + 
, -3 - 
D. 
, 