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Gradients of perpendicular lines Gradients Collinearity

Posted by: mrboardman on: June 15, 2011

• In: The straight line | Unit 1
• Leave a Comment

Points that lie on the same line are said to be collinear.

Example 1

Prove that the points A(-5, -3) , B(-1, 0) and C(7, 6) are collinear.

        

As the gradients of lines AB and BC are the same and B is common to both AB and BC then points A, B and C are collinear.

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Addition Formula Circle Differentiation Graphs of Functions Higher study skills Integration Logarithms and Exponentials Nabs Polynomials prelim Recurrence Revision The straight line Uncategorized Unit 1 Unit 2 Unit 3 Vectors

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