Which of the following relationships represents a function? A.
(-5,4), (5,6), (-5,3), (9,2)
B.
(-5,0), (5,3), (-1,1), (5,5)
C.
(-5,4), (5,2), (-1,1), (9,2)
D.
(-5,4), (5,6), (5,3), (9,2)

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.