y = 10x
Step-by-step explanation:
For a graph or function to have a proportional relationship, it must follow the form:
y = kx
where k = constant of proportionality
We need to find k in the graph given by picking points for x and y:
when x = 1, y = 10
let's pick another point to confirm:
when x = 2, y = 20
We can see k is constant.
The proportional relationship between the number of counselors and maximum number of children: