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Midpoint of a Line

The midpoint of a line is the point that lies the same distance from each of the endpoints.

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  • To calculate the coordinates of the midpoint between points A and B, work out the horizontal distance between A & B and add half of this to the x-coordinate of A.
  • This is the x-coordinate of the midpoint.
  • Do the same for the vertical distance to get the y-coordinate.
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Midpoint formulae

  • If we have a line between point A (xa, ya) and B (xb, yb) the co-ordinates of the midpoint are given by the equation above.

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1.1Place Value

1.2Factors & Multiples


1.4Fractions, Decimals & Percentages

1.5Growth & Decay

1.6Measurements & Units



3Ratio, Proportion & Rates of Change

4Geometry & Measures



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