A team is selling discount cards as a fundraiser. The table shows the number of cards sold and the remaining amount of money needed.

A table showing Discount Cards Fundraiser with two columns and six rows. The first column, Cards Sold, has the entries, 10, 20, 30, 40, 50. The second column, Remainder of Goal, has the entries, $875, $795, $715, $635, $555.

Which word describes the slope of the line representing the data in the table?

Question

A team is selling discount cards as a fundraiser. The table shows the number of cards sold and the remaining amount of money needed.

A table showing Discount Cards Fundraiser with two columns and six rows. The first column, Cards Sold, has the entries, 10, 20, 30, 40, 50. The second column, Remainder of Goal, has the entries, $875, $795, $715, $635, $555.

Which word describes the slope of the line representing the data in the table?

Mercury · Answer

two ways to approach this:

1. graph the points (10,875), (20,795), etc. and observe whether the slope is positive (sloping upwards from left to right) or negative (sloping downwards from left to right)

2. think about the trend of the x and y-values. notice how the x-values are increasing from 10 to 20 to 30, etc. and how the y-values are decreasing from 875 to 795, etc.). without actually graphing it, try to visualize whether the slope would be going up or down as x increases.