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Matching Lines 1

Each example shows some points on a straight line, but with at least one point wrongly placed.
Use the sliders to plot the correct lines, and see the mistakes highlighted.

You can select eight green lines on this page. Using the sliders to match the blue line to the green line
will reveal the equation in each case, but can you say what the equation is before making the match?

You can select ten green lines on this page. Using the sliders to matching the blue line to the green line
will reveal the equation in each case, but can you say what the equation is before making the match?