Question

After 4 hours of fundraising, the Robotics Club needed $360 more to pay for its equipment. After 7 hours of fundraising, the club needed $120. What is the rate of change for this linear relationship?

Answer 1

`-80`
`80` dollars less to pay after every hour

Explanation:

`(360-120)/(4-7) rarr` Amount left to pay over hours of fundraising

`240/(-3)`

`-80 rarr` This indicates that for every hour of fundraising, `80` dollars less (or `-80` dollars more) needs to be paid for the equipment