Graphing in the coordinate plane
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Defining a Line with Two Points
Place two points wherever you like. Compute the slope of the line between them. View the equation of that line in slope‑intercept … and point‑slope form.
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Point-Slope Form of a Line - Activity A
Compare the point-slope form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
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Point-Slope Form of a Line - Activity B
Compare the point‑slope form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
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Points in the Coordinate Plane - Activity A
Identify the coordinates of points in the coordinate plane. Drag the points in the plane and investigate how the coordinates change … in response.
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Points in the Coordinate Plane - Activity B
Identify the coordinates of a point in the coordinate plane. Drag the point in the plane and investigate how the coordinates change … in response.
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Points in the Coordinate Plane - Activity C
Identify the coordinates of a point in the coordinate plane. Drag the point in the plane and investigate how the coordinates change … in response.
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Slope - Activity A
Adjust the coordinates of two points in the plane and find the slope of the line that passes through them.
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Slope - Activity B
Explore the slope of a line, and learn how to calculate slope. Adjust the line by moving points that are on the line, and see how its … slope changes.
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Slope - Activity C
Examine the graph of two points in the plane. Find the slope of the line that passes through the two points. Drag the points and … investigate the changes to the slope and to the coordinates of the points.
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Slope-Intercept Form of a Line - Activity A
Compare the slope‑intercept form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
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Slope-Intercept Form of a Line - Activity B
Compare the slope‑intercept form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
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Slope-Intercept Form of a Line - Activity C
Compare the slope‑intercept form of a linear equation to its graph. Find the slope of the line using a right triangle on the … graph. Vary the coefficients and explore how the graph changes in response.
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Standard Form of a Line
Compare the standard form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
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Using Tables, Rules and Graphs
Compare the graph of a linear function to its rule and to a table of its values. Change the function by dragging two points on the … line. Examine how the rule and table change.
