To write the equation of the perpendicular bisector of a given segment AB, we must find
(a) the length of AB.
(b) the slope of AB.
(c) the midpoint of AB.
(d) Both (a) and (c) are correct.
(e) Both (b) and (c) are correct.
(e) Both (b) and (c) are correct.
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Given that the graph of y = f(x) lies between the graphs of y = l(x) and y = u(x) for all x, use the Squeeze Theorem to find 
f(x).u(x) = 5, l(x) = 5 - x2, f(x) = 4 + 
A. 1 B. 4 C. 0 D. 5
State the phrase as a mathematical expression. Use x to represent the variable.Four times a number, added to 47
A. 4(x + 47) B. 4 ? 47 + x C. 4x D. 4x + 47
Solve the problem.Data regarding the amount spent by a government department is represented in the following graph. Find the change in amount spent for the years shown in the graph. Is the graph a straight line?
A. Change for each year: $0.18 billion; yes B. Change for each year: $0.72 billion; yes C. Change from 1998 to 1999: $0.72 billion, change from 1999 to 2000: $0.18 billion; no D. Change for each year: $0.38 billion; yes
Graph the inequality on a number line.(-?, 7]
A. 
B. 
C. 
D. 