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Graph It: Call the Line
Created by Argraide
Updated October 27th, 2026
At a glance
- Staff pick
- Picked by the Argraide team
- Play mode
- 📺 Presenter
- Format
- 🖼️ 2D
- Length
- ⏱ About 20 minutes
- Subject
- Math
- Grade
- 9
- Curriculum
- Ontario
- Curriculum codes
- C3.2C4.4
About this activity
The class calls where a line starts and how steeply it moves, the teacher drags the line to the call, and the grid shows how far off it was. Rate of change meets slope and initial value meets y-intercept before the class writes the equation.
What students learn
- Read a table or a graph of a linear relation to find its initial value and its rate of change
- Connect the initial value to the y-intercept and the rate of change to the slope, for rising and falling lines
- Write the equation of a line in the form y = mx + b from a table, a graph or a described situation
- Draw the line that an equation describes
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