Week 3 - Math 8 - Assessment

3 of 93 of 9 Items

Question
POSSIBLE POINTS: 12.5
Given the table for x, tickets sold and y, money earned:

x - # of tickets sold 4 9 8 5 7
y - $ earned 48 108 96 60 84
Every ticket sold is
dollars earned. This is called a

The relationship is
because there is a constant
and 0 tickets sold means $0 earned.

1 answer

To analyze the data given in the table, we can determine the amount earned per ticket sold and conclude the type of relationship.

  1. Determine the amount earned per ticket sold (constant cost per ticket):

    • Using the information provided, we can find the amount earned per ticket sold by dividing the total amount earned by the number of tickets sold for each corresponding pair:
      • For (4 tickets, $48): \( \frac{48}{4} = 12 \) dollars per ticket
      • For (9 tickets, $108): \( \frac{108}{9} = 12 \) dollars per ticket
      • For (8 tickets, $96): \( \frac{96}{8} = 12 \) dollars per ticket
      • For (5 tickets, $60): \( \frac{60}{5} = 12 \) dollars per ticket
      • For (7 tickets, $84): \( \frac{84}{7} = 12 \) dollars per ticket

    Therefore, every ticket sold is 12 dollars earned.

  2. Description of the relationship:

    • The relationship is linear because there is a constant rate of increase (12 dollars per ticket), which implies that as more tickets are sold, earnings increase at a constant rate.
    • The statement about 0 tickets sold means $0 earned also suggests that the line passes through the origin (0,0) which is characteristic of a linear relationship.

Thus, the completed sentences would be:

  • Every ticket sold is 12 dollars earned. This is called a constant rate.
  • The relationship is linear because there is a constant rate of $12 per ticket, and 0 tickets sold means $0 earned.