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Calculate the slope of the line passing through the given points. If the slope is undefined, so state. Then indicate whether the line rises, falls, is horizontal, or is vertical.(7, 4), (2, 5)
A. 
, rises
B. - 
, falls
C. - 5, falls
D. 1, rises
Solve the compound inequality and graph the solution set on a number line. Except for the empty set, express the solution set in interval notation.x ? 2 or x ? 6
A. (2, 6)
B. (-?, 2] ? [6, ?)
C. [2, 6]
D. ?
Solve the problem.In Country X, the average hourly wage in dollars from 1960 to 2010 can be modeled by f(x) = 
Use f to estimate the average hourly wages in 1965, 1985, and 2005.
A. $0.77, $2.27, $6.67 B. $0.77, $3.05, $6.67 C. $3.43, $0.39, $6.67
Find the amplitude of the function. y = 3 sin x
A. 
B. 3
C. 2?
D. 3?