Graph the function. Give the domain and range.f(x) = log2 x
A. domain: (-?, 0); range: (-?, ?)
B. domain: (0, ?); range: (-?, ?)
C. domain: (-?, 0); range: (-?, ?)
D. domain: (0, ?); range: (-?, ?)
Answer: B
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Write the expression in terms of sines and/or cosines, and then simplify.
A. 
B. 
C. cos ? - sin ?
D. 
Solve the problem.To estimate the ideal minimum weight of a woman in pounds multiply her height in inches by 4 and subtract 130. Let W = the ideal minimum weight and h = height. W is a linear function of h. Find the ideal minimum weight of a woman whose height is 62 inches.
A. 118 lb B. 378 lb C. 120 lb D. 130 lb
Tell whether the statement is true or false.Every rational number is an integer.
A. True B. False
Find the indicated coefficient or term.The coefficient of x8 in the expansion of (x2 - 3)7
A. -945 B. 945 C. -2835 D. 2835