Three friends are planning ahead for the winter and decide to make some money shovelling
snow. They know the largest driveway in the community is 50 metres square.
• John-Paul decides he will always charge $12 per driveway.
• Janice decides she will charge $3 plus $0.20 per square metre of shovelling.
• Thomas decides he will charge $0.40 per square metre of shovelling.
Create clearly labeled a graph to show the cost structure for all three friends visually.
Then discuss the best option for when a person in the neighbourhood wants to hire
someone based on their possible needs.
assuming the "best option" is the lowest cost per square meter, then just divide the cost by the area for each company, and compare those unit costs.
As for the graphs, check your text or online for examples.