The points P(−1,8)P(-1, 8)P(−1,8) and Q(4,−2)Q(4, -2)Q(4,−2) lie on a straight line. Determine the gradient of the line PQPQPQ.
68 exam-style questions on Edexcel GCSE Maths Gradient of a Line. Each one has a worked solution and a mark scheme showing where the marks go.