Writing Slope-Intercept Equations

Watch this lecture series and complete the interactive exercises to learn how to write an equation of a line in slope-intercept form.

Writing linear equations word problems - Questions

1. Simba Travel Agency arranges trips for climbing Mount Kilimanjaro. For each trip, they charge an initial fee of $100 in addition to a constant fee for each vertical meter climbed. For instance, the total fee for climbing to the Shira Volcanic Cone, which is 3000 meters above the base of the mountain, is $400.

Let y represent the total fee (in dollars) of a trip where they climbed x vertical meters.

Complete the equation for the relationship between the total fee and vertical distance.

 y = \text { ______ }


2. Rachel is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), she drove to get to the safe zone at 24 meters per second. After 4 seconds of driving, she was 70 meters away from the safe zone.

Let y represent the distance (in meters) from the safe zone after x seconds.

Complete the equation for the relationship between the distance and number of seconds.

 y = \text { ______ }


3. Carolina is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus $6 for each hour of work. Her total fee for a 4-hour job, for instance, is $32.

Let y represent Carolina's fee (in dollars) for a single job that took x hours for her to complete.

Complete the equation for the relationship between the fee and number of hours.

 y = \text { ______ }


4. Kayden is a stunt driver. One time, during a gig where she escaped from a building about to explode(!), she drove at a constant speed to get to the safe zone that was 160 meters away. After 3 seconds of driving, she was 85 meters away from the safe zone.

Let y represent the distance (in meters) from the safe zone after x seconds.

Complete the equation for the relationship between the distance and number of seconds.

 y = \text { ______ }