List

Straight line graphs

How steep is the slope?
problem
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How steep is the slope?

Age
11 to 14
Challenge level
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On the grid provided, we can draw lines with different gradients. How many different gradients can you find? Can you arrange them in order of steepness?

At right angles
problem
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At right angles

Age
14 to 16
Challenge level
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Can you decide whether two lines are perpendicular or not? Can you do this without drawing them?
Parallel lines
problem
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Parallel lines

Age
11 to 14
Challenge level
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How does the position of the line affect the equation of the line? What can you say about the equations of parallel lines?
Perpendicular lines
problem
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Perpendicular lines

Age
14 to 16
Challenge level
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Position the lines so that they are perpendicular to each other. What can you say about the equations of perpendicular lines?
Diamond Collector
game
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Diamond collector

Collect as many diamonds as you can by drawing three straight lines.

Reflecting Lines
problem
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Reflecting lines

Age
11 to 14
Challenge level
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Investigate what happens to the equations of different lines when you reflect them in one of the axes. Try to predict what will happen. Explain your findings.
Translating Lines
problem
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Translating lines

Age
11 to 14
Challenge level
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Investigate what happens to the equation of different lines when you translate them. Try to predict what will happen. Explain your findings.