Question

Find the slope of the line passing through the points A(3, 3) and B(5, 7).

Answer 1

Let A(3, 3) ≡ (x₁, y₁); B(5, 7) ≡ (x₂, y₂)

The slope of a line = `(y_2 - y_1)/(x_2 - x_1)`

∴ the slope of the line passing through the points A and B 

= `(7-3)/(5-3)`

= `4/2 = 2`

The slope of the line AB is 2.