Question 22

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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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