# Rate of change

## All You Need in One PlaceEverything you need for better marks in primary, GCSE, and A-level classes. | ## Learn with ConfidenceWe’ve mastered the UK’s national curriculum so you can study with confidence. | ## Instant and Unlimited Help24/7 access to the best tips, walkthroughs, and practice questions. |

#### Make math click 🤔 and get better grades! 💯Join for Free

0/4

##### Examples

###### Lessons

- Draw a graph to describe the fare charged by a taxi with an initial cost of $10.50 plus $2.50 per km traveled.
- Draw a graph to describe the income of a insurance sales person who earns $800 per month plus $400 for every car sold.
- A long distance runner passes the 36 km mark of a race in 1 hr 40 mins, and passes the 44 km mark 1 hr 10 mins later. If the rate is constant, find the speed of the long distance runner in km/hr.
- Cathy hires a super band to play at a wedding. The cost for the wedding was $1000 for the band, plus $50 per guest for food and $3 per guest for beverages. Determine the cost per person if 150 guests attended the wedding, and averaged three drinks per person.