Determine whether the relation is a function. Give the domain and range.{(3, -1), (1, 4), (12, 7), (6, 10), (9, -8)}
A. not a function; domain: {1, 6, 12}; range: {-1, -8, 4, 7, 10}
B. function; domain: {1, 3, 6, 9, 12}; range: {-1, -8, 4, 7, 10}
Answer: B
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Express the limit as a definite integral.
?xk, where P is a partition of [0, 4?]
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Determine whether the variation between the indicated quantities is direct or inverse.The distance traveled by you in a car and the time taken to drive this distance
A. Direct B. Inverse
Solve the problem.If f(x) gives the time in hours to travel x miles at 
per hour, then what does 
give?
A. The hours taken to travel x miles B. The miles traveled in 48 hours C. The miles traveled in x hours D. The hours taken to travel 48 miles
Perform the indicated operations. Simplify the answer.
? 
A. -16 B. 4i C. 4 D. 16i