1)
a) Yes, the situation can be modeled by a linear equation because the cost increases by a constant amount ($50) for each additional 2 people, meaning the rate of change (slope) is constant.
b) The slope is 25. It represents the cost per person for visiting the ranch for one day and night.
c) C = 25n + 150, where C is the total cost in dollars and n is the number of people.
2)
a) The slope is 16. It represents the cost per person for the catered lunch buffet.
b) C = 16n, where C is the total cost in dollars and n is the number of people attending.
c) The cost of a lunch buffet for 120 people is $1920.
Parent Tip: Review the logic above to help your child master the concept of scatter plots and lines of best fit worksheet answer key.