- Yearly water usage in the usa is collected and needed to be presented
- Yearly means every year
- Water usage is a kind of data
- So, yearly water usage in the usa is a kind of data over time

- Yearly water usage in the usa is a kind of data over time
- A line graph is used for showing change / data over time
- So, a line graph can be used to show yearly water usage in the usa

Therefore, a line graph can be used to show yearly water usage in the usa
Q: Which graph is best to present data collected on yearly water usage in the United States?
Context:
- Yearly water usage in the usa is collected and needed to be presented 
- Yearly means every year 
- A line graph is used for showing change / data over time 
- Water usage is a kind of data