Evaluate the function.Given f(x) = 
, find f(-4).
A. - 
B. 
C. 0
D. - 
Answer: A
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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.(-1, -8), (-1, -7)
A. 0, is horizontal
B. 
, rises
C. 
, rises
D. undefined, is vertical
Write each expression using the LCD as the denominator.
; 
; 
A. 
; 
; 
B. 
; 
; 
C. 
; 
; 
D. 
; 
; 
Solve the problem.You buy a $500 certificate of deposit (CD) and the end of two years you cash it for $551.25. What is the annual yield on this investment?
A. 2.5% B. 6% C. 5% D. 0.05% E. none of these
Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: (-?, ?), Range: (-?, ?)
B. f(x) = 
; Domain: (-?, ?), Range: (-?, ?)
C. f(x) = 
; Domain: (-?, 2) ? (2, ?), Range: (-?, ?)
D. f(x) = 
; Domain: (-?, ?), Range: (-?, 2) ? (2, ?)