Jambmaths question:
Find the gradient of the line joining the points P(5,6) and Q(3,3)
Option A:
$\tfrac{1}{2}$
Option B:
$\tfrac{3}{2}$
Option C:
2
Option D:
3
Jamb Maths Solution:
$\begin{align} & m=\frac{{{y}_{2}}-{{y}_{1}}}{{{x}_{2}}-{{x}_{1}}} \\ & P({{x}_{1}},{{y}_{1}})=(5,6) \\ & Q({{x}_{3}},{{y}_{3}})=(3,3) \\ & m=\frac{3-6}{3-5}=\frac{-3}{-2}=\frac{3}{2} \\\end{align}$
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