The quantitative relation between two amounts showing the number of times one value contains or it’s contained within the other.
Cost of most expensive product = $40
total money spent at the store
= 18 + 22 + 35
= 75
A, B, D, and E are correct.
What makes these a function and the others not is that for each x value, there is only one y value. For C, for example, there are multiple y values for the x value of -2. The same goes for F.
