Jambmaths question: Find the gradient of the line passing through P(1,1) and Q(2,5) Jamb Maths Solution: $m=\frac{{{y}_{2}}-{{y}_{1}}}{{{x}_{2}}-{{x}_{1}}}=\frac{5-1}{2-1}=\frac{4}{1}=4$ Jamb Maths Topic: Coordinate GeometryYear of Exam: Jamb Maths 2010