Determine whether the relation is a function.{(2, 7), (2, 2), (4, -5), (7, -5), (12, -6)}
A. It is not a function.
B. It is a function.
Answer: A
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Solve.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 75 seconds with an average speed of 4 feet per second. Find the average speed of the swimmer if it takes him 100 seconds to finish the race.
A. 2 feet per second B. 5 feet per second C. 4 feet per second D. 3 feet per second
Express the given vector as a linear combination of the unit vectors i and j.u = 
A. 12i + 5j B. 12i - 5j C. 5i - 12j D. 5i + 12j
Solve the equation using the quadratic formula.
q2 - q + 3 = 0
A. 
B. 
C. 
D. 
The point P on the circle x2 + y2 = r2 that is also on the terminal side of an angle ? in standard position is given. Find the indicated trigonometric function.(-1, -1)Find csc ?.
A. -
B. -2
C. -1
D. 