Question

7. You are planning a camping trip. The campsite you want to rent charges a $15 fee to reserve the site, plus an extra $3 per day.
Part I: Define your variables and write a linear equation in slope-intercept form to represent the cost of the campsite.

Answer 1

Let d = number of days you rent the site (d ≥ 1). Let C = total cost in dollars.

Linear equation (slope-intercept form): C = 3d + 15

(Here the slope 3 is the cost per day and the y-intercept 15 is the $15 reservation fee.)