Question

Lucy and her friends are selling boxes for cookies. The equation shows the amount of money, "y", collected for x boxes of cookies sold. Which statement is true?As the number of boxes sold increases by one unit, the total amount of money earned decreases by $18As the number of boxes increases by 18 units, the total amount of money earned decreases by $1As the number of boxes sold increases by one unit, the total amount of money earned increases by $18As the number of boxes sold increases bu 18 units, the total amount of money earned increases by $1

Answer 1

As the number of boxes sold increases by one unit, the total amount of money earned increases by $18

1) Considering that y=18x denotes a proportional relationship. We can write the following

x = boxes

y= $

y=18x See the behavior in the table

x (boxes) | y ($)

1 18

2 36

3 54

4 72

(...) (...)

2) Examining the options we can state that as the number of boxes increases by 1 unit, the total amount of money earned increases by $ 18.

3) Hence, the answer is C