2025 IGCSE 0580 February/March P22 Q21

2025 IGCSE 0580 February/March P22 Q21

6 marks
  1. Write down the coordinates of the point where the graph of \(y=5x-3\) crosses the \(y\)-axis.[1]
  2. \(A\) is the point \((1,7)\) and \(B\) is the point \((5,15)\).
    Find the equation of the perpendicular bisector of the line \(AB\).
    Give your answer in the form \(y=mx+c\).[5]

Solution:

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Answer:(a) \((0,-3)\). (b) \(y=-\dfrac12x+\dfrac{25}{2}\).

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