1.
line graph; line chart
A type of graph that displays data points connected by straight line segments. Used to show changes over time or trends.
折れ線グラフを描く。
To draw a line graph.
気温の変化を折れ線グラフで表す。
To show temperature changes with a line graph.
この折れ線グラフを見ると、売り上げが右肩上がりに伸びているのがわかる。
Looking at this line graph, you can see that sales have been steadily increasing.
Composed of 折れ線 (broken line / polyline) + グラフ (graph). The name comes from the zigzag shape formed when data points are connected by straight lines.
COMMON COLLOCATIONS:
- 折れ線グラフを描く: to draw a line graph
- 折れ線グラフで表す: to represent with a line graph
- 折れ線グラフを読み取る: to read/interpret a line graph
SIMILAR WORDS:
- 棒グラフ: bar graph — uses rectangular bars to represent data
- 円グラフ: pie chart — uses a circle divided into sectors
- 帯グラフ: band graph / stacked bar chart
NOTE:
Line graphs are taught in Japanese elementary school math (算数) and are one of the basic graph types students learn alongside bar graphs and pie charts.