Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = 0 to x = 6; n = 6
A. 211
B. 200
C. 230
D. 221
Answer: D
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Perform the indicated operations.-16
+ 2
A. 13
B. 19
C. -14
D. -18
Write the statement in symbols, using x as the variable, and find the solution by guessing or by using trial and error. All solutions come from the list of integers between -12 and 12 inclusive.6 times a number is 18.
A. 3x = 18; 6
B. -6x = 18; -3
C. 6x = 18; 3
D. 
= x; 6
Solve the problem.This chart shows the fees for an 18-hole round of golf for each of the last 5 years at a local municipal golf course. Assume that this chart defines a function with the name of f. Find f(2010).
A. $24 B. $26 C. $22 D. $28
Find the domain of the function.f(x) = x2 + 4
A. {x|x > -4}, or (-4, ?) B. {x|x ? -4}, or [-4, ?) C. {x|x ? -4}, or (-?, -4) ? (-4, ?) D. all real numbers, or (-?, ?)