Question

The diagram below shows a proportional relationship between the number of cans of soup and the price.What is the constant of proportionality for this situation?

Explain what this value means in terms of the soup.

Answer 1

The constant of proportionality is 1.25 and its meaning is the soup price per can

Explanation:

The diagram below shows a proportional relationship between the number of cans of soup and the price.

1st:

$3.75 for 3 cans

`\$3.75/ 3=\$1.25` per can

2nd:

$6.25 for 5 cans

`\$6.25/ 5=\$1.25` per can

If x is the number of cans and y is the price of x cans, then

`y=1.25x`

This means the constant of proportionality is 1.25 and its meaning is the soup price per can