Lesson 06: Increasing and Decreasing | Unit 4: Proportional Relationships and Percentages

For diagram A, decide if $$y$$ is an increase or a decrease relative to $$x$$ .

For diagram A, what is the percent increase or decrease of $$y$$ relative to $$x$$ ?

For diagram B, decide if $$y$$ is an increase or a decrease relative to $$x$$ .

For diagram B, what is the percent increase of $$y$$ relative to $$x$$ ?

Write the percent decrease in the number of sunny days this year compared to last year as a percentage of the initial amount. Context: This year, there were 25% fewer sunny days than last year.

Write the percent increase in the number of houses sold this month compared to last month as a percentage of the initial amount. Context: Compared to last month, there was a 50% increase in the number of houses sold this month.

Write the percent decrease in the runner's time to complete the marathon compared to the last marathon as a percentage of the initial amount. Context: The runner’s time to complete the marathon was 10% less than the time to complete the last marathon.