Question

Luigi is an urban planner. As an independent contractor, he charges a $140 fee plus $25 per hour for

each contract with the city
Write a function to represent this scenario where y represents the total amount he charges for a
project and x represents the number of hours worked on a project.
Amount earned for 10 hours of work ?

Answer 1

Function:
`y=140+25x`

Amount earned for 10 hours of work:
`\$390`

Explanation:

Let be "x" the number of hours worked on a project and "y" the total amount Luigi charges for a project.

Based on the data given in the exercise, you can identify that:

• $140 is a fixed amount.
• For each hour worked on the project, Luigi charges $25. This can be expressed as:
  `25x`

Then, the total amount he charges for a project is the sum of $140 and
`25x`. This can be represented with the following function:

`y=140+25x`

To calculate the amount of money earned for 10 hours of work, you must substitute
`x=10` into the function and evaluate. Then:

`y=140+25(10)\\\\y=390`