Have a look at the first elements of each point: {3, 0, 1, -2, 2}. Since these are all different, no one x value has more than one y-value associated with it, and thus (3,-2)(0,1)(1,0)(-2,-1)(2,-1) is a function.
The supplies cost $80.41. I also attached a picture of the work in case you need it
Answer:
The value of h is 42.956 approximately.
Step-by-step explanation:
Consider the provided formula 
Here d is the distance of the driver from the letters and e is the height of the driver's eye above the pavement. All of the distances are in meters.
We need to find the value of h where the value of d = 92.4 m, e = 1.7 m.
Substitute d = 92.4 m, e = 1.7 m in above formula and solve for h.




Hence, the value of h is 42.956 approximately.
8x - 5x + 15 = 18
8x - 5x = 3
3x = 3
x = 1