linegraph
nounUK /ˈlaɪn.ɡrɑːf/
US /ˈlaɪn.ɡræf/
A line graph is a picture that uses a line to show how numbers change.
The teacher drew a line graph to show how the class's test scores went up each month.
OTHER MEANINGS
2. A chart in which data points are connected by straight line segments.
The line graph connected each day's temperature with a straight line.
3. A visual tool for tracking changes over time.
We used a line graph to track the plant's growth over six weeks.
4. A diagram showing a continuous trend rather than separate bars.
Unlike a bar chart, the line graph made the steady rise easy to see.