Determine the domain and the range of the function.f(x) = -x2 + 8x - 7
A. domain: all real numbers
range: {y|y ? -9}
B. domain: all real numbers
range: {y|y ? 9}
C. domain: all real numbers
range: all real numbers
D. domain: {x|x ? -4}
range: {y|y ? 9}
Answer: B
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Solve the problem.If the series 
is integrated twice term by term, for what value(s) of x does the new series converge?
A. 4 ? x < 6 B. 4 < x < 6 C. 4 ? x ? 6 D. 4 < x ? 6
Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (2, 1) for ln x + xy2 + ln y = 0.
A. 1
B. 
C. -1
D. - 
Provide an appropriate response.47.9% of what number is 423.39? (nearest whole number) Use the percentage formula.
A. 8,839 B. 2,028 C. 884 D. 1,131 E. none of the above
Find percent notation.
Round to the nearest tenth, if necessary.
A. 8.6% B. 70% C. 122.4% D. 85.7%