Use Slope Intercept Form (Page 2 of 2) in pdf

Use Slope Intercept Form Page 2

Example 3

Write an equation given the slope and a point

A carnival charges $2.50 per ride after an entrance fee. You paid a total of $22.50 after 6 rides. Write an

equation that gives the total cost as a function of the number of rides.

Find the entrance fee.

Find the total cost for 15 rides.

Example 4

Write an equation given two points

A BMX race track charges a membership fee and an entry fee per race. One racer paid a total of $76 after 3

races. Another racer paid a total of $124 after 7 races.

What is the entry fee per race?

How much does the track membership cost?

Write an equation that gives the total cost as a function of the number of races entered.

 Check Point

A gym charges $35 per month after an initial membership fee. A member has paid a total of $250 after

6 months. Write an equation that gives the total cost of a gym membership as a function of the length of

membership (in months). Find the membership fee. Find the total cost of membership after 12 months.

Use Slope Intercept Form Page 2