Answer:
c = 45m + 55
Step-by-step explanation:
There are two variables: the number of months and the total cost. The total cost depends on the length of the membership.
The variables are
Output: c, cost in dollars
Input: m, number of months.
The rate of change or slope is $45/mo.
The initial value is $55, the cost of a uniform.
The rate of change is constant, so we can use a linear model of the form
y = ax +b or
c = am +b
m = 45; b = 55
The linear function is
c = 45m + 55
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You can see a graph of the function below.
The initial cost is $55. At 10 mo, the total cost is $450 + $55 = $505.
