Question

Find slope of a line passing through the points A(3, 1) and B(5, 3). 

Answer 1

A ≡ (3, 1) ≡ (x₁ , y₁)  and B ≡ (5, 3) ≡ (x₂ , y₂) 

Slope of a line AB = `(y_2 - y_1)/(x_2 - x_1)`

`= (3-1)/(5-3)`

= `2/2`

= 1