ACMNA238

Solve problems involving parallel and perpendicular lines

Elaborations

• solving problems using the fact that parallel lines have the same gradient and conversely that if two lines have the same gradient then they are parallel (Skills: Numeracy, Critical and Creative Thinking)
• solving problems using the fact that the product of the gradients of perpendicular lines is -1 and conversely that if the product of the gradients of two lines is -1 then they are perpendicular (Skills: Numeracy, Critical and Creative Thinking)

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