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Class Rousseau Mr Duffy

Class Rousseau Mr Duffy. October 2008 Co-ordinate Geometry of the Line 2. Midpoint Revision. Formula to use is Remember: 1. Label points as normal 2. Write out the formula 3. Sub in as normal 4. Solve using your calculator 5. Be careful with minus signs

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Class Rousseau Mr Duffy

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  1. Class RousseauMr Duffy October 2008 Co-ordinate Geometry of the Line 2 Lucan Community College Mathematics Department

  2. Midpoint Revision • Formula to use is • Remember: • 1. Label points as normal • 2. Write out the formula • 3. Sub in as normal • 4. Solve using your calculator • 5. Be careful with minus signs • 6. NEVER EVER EVEREVER add the two numbers at the end. They must be a point in the form (x , y) .

  3. Any issues with your homework? • Please ask now!

  4. Slope of a line • What does the slope of a line mean? • Look at the following diagrams to see what’s going on.

  5. Slope Formula • Again, we can calculate the slope of a line using a formula which is very like the ones we’ve used up to now. The formula is...............

  6. Steps involved • 1. Write out formula • 2. Label Points • 3. Sub in and solve • 4. Be careful with minus signs

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