Find the domain of the rational function.h(x) = 
A. {x|x ? 0, x ? -4}
B. all real numbers
C. {x|x ? -2, x ? 2, x ? -7}
D. {x|x ? -2, x ? 2}
Answer: A
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Find the absolute extreme values of the function on the interval.f(x) = |x - 5|, 4 ? x ? 10
A. absolute maximum is 5 at x = 10; absolute minimum is 0 at x = 5 B. absolute maximum is -1 at x = 4; absolute minimum is 5 at x = 10 C. absolute maximum is 5 at x = 10; absolute minimum is 1 at x = 4 D. absolute maximum is 1 at x = 4; absolute minimum is 0 at x = 5
Sketch the graph of the function.y = x2 - ex
A. 
B. 
C. 
D. 
Solve.During a visit to a high school, a health care worker determined that 25 of the 225 girls were anemic and 18 of the 220 boys were anemic. (a) Express in lowest terms the fraction of girls who were anemic.(b) Express in lowest terms the fraction of boys who were anemic.(c) Is the fraction of anemic students higher among the girls or the boys? [Hint: Convert your answers to parts (a) and (b) to equivalent fractions with the same denominator.]
A. (a) 
, (b) 
, (c) girls
B. (a) 
, (b) 
, (c) girls
C. (a) 
, (b) 
, (c) girls
D. (a) 
, (b) 
, (c) girls
Rationalize the denominator and simplify.
A. 1
B. 
C. 
D. 