The unit rate means that there are 12 students for each adult.
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change and b is the initial value of y.
Let y represent the number of students and x represent the number of adults. Since y is proportional to x, hence:
y = mx
The line passes through the point (8,96):
96 = 8m
m = 12
The unit rate means that there are 12 students for each adult.
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