Question

in 2014, a state park recreational pass cost $8.50. starting in 2015, the parks and recreation department will increase this cost by $0.80 a year.

Answer 1

The equation for the cost after 2014 will be : Cost(x) = 8.50 + 0.8n

The cost of pass on 2014 = $8.50

Increase in cost per year = $0.80

The equation which represents the yearly cost starting from 2015 will be :

Cost in 2014 + (yearly increas × number of years after 2014)

Let the Number of years after 2014 = n

The equation thus becomes :

Cost(x) = 8.50 + 0.8n

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