Linear Rates of Change
Interactive practice questions
Sarah is planning to donate some scarves to the local charity for their winter drive next month. She already has $8$8 old scarves that she is willing to give away and plans on adding to this amount by knitting $2$2 each week.
Complete the table.
| Week | Number of scarves |
|---|---|
| $0$0 | $\editable{}$ |
| $1$1 | $\editable{}$ |
| $2$2 | $\editable{}$ |
| $3$3 | $\editable{}$ |
| $4$4 | $\editable{}$ |
What amount is added to the number of scarves in each row?
What does this amount represent?
the number of scarves that Sarah will buy each week
the number of scarves that Sarah will knit each week
the difference between the number of scarves that Sarah will have knitted and the number of scarves she will have bought
the number of scarves that Sarah will have knitted after $20$20 weeks
Ellie has just purchased a box of chocolates that contains $35$35 pieces. She plans on eating $3$3 pieces a week until they're all gone.
A bucket containing water has a hole through which the water leaks. The graph shows the amount of water remaining in the bucket after a certain number of minutes.
The graph shows the cost, in dollars, of a phone call for different call durations.