Find an equation of the line described. Through (-3, -4), parallel to the y-axis
A. y = -3
B. x = -3
C. x = -4
D. y = -4x
Answer: B
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Express the product as a sum or difference.cos 3x cos 2x
A. 
(cos 5x - cos x)
B. cos2 6x2
C. 
(cos x + cos 5x)
D. 
(cos 5x - sin x)
Solve the problem.The number of ducks (in thousands) counted at a certain checkpoint in their migration is given by 
where t is time in months and t = 0 is October. Find the number of ducks passing the checkpoint between October and January.
A. 24,549 B. 17,618 C. 20,000 D. 24,536
Find the root. Assume that all variables represent positive numbers.
A. 2
B. y4
C. y
D. y2
Use the geometric interpretation of slope (rise divided by run) to find the slope of the line. Then, by identifying the y-intercept from the graph, write the slope-intercept form of the equation of the line.
A. y = x + 4 B. y = x - 4 C. y = - x + 4 D. y = - x - 4