S + c = 79.10
s = 3.50 + 3c
3.50 + 3c + c = 79.10
3c + c = 79.10 - 3.50
4c = 75.60
c = 75.60/4
c = 18.90 <==== amount spent on coffee
s = 3.50 + 3(18.90)
s = 3.50 + 56.70
s = 60.20 <=== amount spent on soy lattes
4.054 = 4054/1000 = 2027/500
Answer:
4
Step-by-step explanation:
In a function, you cannot have more than one point with any x-coordinate.
There are two sets of points that cause problems.
(-2, 2) and (-2, 3) have the same x-coordinate, -2.
(2, -2) and (2, -4) have the same x-coordinate, 2.
If you remove one of the points with x-coordinate -2 and one of the points with x-coordinate 2, then you'd have a function, so the answer is 2.
