The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = log (x) - 3
B. y = 3 - log (x)
C. y = log (x - 3)
D. y = log (3 - x)
Answer: C
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Solve the problem.The ratio of the lengths of strings that play the notes D and B is 27 to 16. If a string 32 cm long plays a B, what is the length of the string that plays a D?
A. 32 cm B. 54 cm C. 48 cm D. 59 cm
Use properties of exponents to simplify the expression. Express answer in exponential form.93 ? 9-5
A. -98 B. 9-15 C. 9-2 D. -9-2
Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: (-?, 0) ? {5}, Range: (-?, ?)
B. f(x) = 
; Domain: (-?, ?), Range: (-?, 0] ? {5}
C. f(x) = 
; Domain: (-?, ?), Range: (-?, 0) ? {5}
D. f(x) = 
; Domain: (-?, 0] ? (5), Range: (-?, ?)
Find functions f and g so that f ? g = H.H(x) = 
A.
f(x) =  ; | g(x) = - 1/6 |
B.
| f(x) = x2 - 6; | g(x) =  |
C.
f(x) =  ; | g(x) = x - 6 |
D.
f(x) =  ; | g(x) = x2 - 6 |