IXL - Rate of change: tables (Algebra 1 practice)

Gabby kept track of the number of games her soccer team won each year.

Games won by Gabby's soccer team
Year	Games won
2011	15
2012	9
2013	11
2014	16
2015	15

According to the table, what was the rate of change between 2014 and 2015?

games per year

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question

Mrs. Haley hosts an annual art contest for kids, and she keeps a record of the number of entries each year.

Art contest entries
Year	Number of entries
2013	29
2014	43
2015	31
2016	38
2017	33

According to the table, what was the rate of change between 2013 and 2016?

entries per year

key idea

Rate of change

change in value

change in time

solution

Plug the numbers into the formula for rate of change and simplify.

Rate of change

change in value

change in time

entries

–

entries

2,016

–

2,013

entries

–

entries

years

entries

years

entries per year

The rate of change between 2013 and 2016 was

entries per year

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