Question

Jasper owns a trading card business. He is making data for orders with a company. x = the number of packs of trading cards. y = total cost of an online order. (4,28) means Jasper gets ? packs of trading cards for$?. (10,64) means jasper gets ? packs of trading cards for $ ?. The rate of changes for (4,28) and (10,64) it means that Jasper pays $ ? per pack of trading cards.

Answer 1

We know that x refers to the number of packs of trading cards, and y refers to the total cost of online orders.

So, the pair (4,28) means Jasper gets 4 packs of cards for $28.

The pair (10,64) means Jasper gets 10 packs of cards for $64.

Then, we find the range of change using the following formula.

$r=\frac{y_2-y_1}{x_2-x_1}=\frac{64-28}{10-4}=\frac{36}{6}=6$

Hence, the rate of change is 6, it means Jasper pays $6 per pack of trading cards.