Determine whether the relation represents a function. If it is a function, state the domain and range.{(-2, 1), (-1, -2), (0, -3), (1, -2), (3, 6)}
A. function
domain: {-2, -1, 0, 1, 3}
range: {1, -2, -3, 6}
B. function
domain: {1, -2, -3, 6}
range: {-2, -1, 0, 1, 3}
C. not a function
Answer: A
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Solve the problem.Assume that the profit P made when t units are sold, t > 0, is given by P(t) = t2 - 22t + 117. For what values of t will there be a profit (that is, P > 0)?
A. There will be a profit when the number of units sold is between, but not including, 9 and 13. B. There will be a profit when 9 or 13 units are sold. C. There will be a profit when 22 units are sold. D. There will be a profit when fewer than 9 or more than 13 units are sold.
Find the derivative of the function.
?
?
A. 
B. ?
C. ?
D. ?
E. 
Solve the variation problem.The distance it takes to stop a car varies directly as the square of the speed of the car. If it takes 112 feet for a car traveling at 40 miles per hour to stop, what distance is required for a speed of 
per hour?
A. 204.46 feet B. 204.12 feet C. 216.42 feet D. 174.96 feet
Multiply.
A. 198,890 B. 198,910 C. 199,000 D. 198,900