Explore how unit price and constant of proportionality are related and how they can be represented using a table, a graph, an equation, and a verbal description.[br][br]Think of something that you enjoy and would like to buy the next time you go to the store. For purposes of this activity, keep the price under $10. Use the purple slider to set your unit price.
Describe the table- do you notice a pattern? How does buying 1 more unit (x) impact the cost?
Divide each cost (y) by the quantity (it's related x). What do you notice?
Desctibe the shape of the graph.
In you own words how you would use the number of items you buy and the unit price to find the cost.
What is the cost when the quantity is zero?
How can you find the unit price ([i]k=constant of proportionality[/i]) from the graph? Select all that apply.
Write an equation using your unit price to show the relationship between the quantity and cost.
What would your total cost be if you were buying 20 items?
Write your own word problem using the item you selected and it's unit price.