## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 169. This question is similar to one that appeared in a GCSE Higher paper (specimen) for 2017. The use of a calculator is not allowed.

Show that line \(5y = 7x - 7\) is perpendicular to line \(7y = -5x + 55\).

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If you need more practice with straight line graphs try Straight Line Graphs.

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