Question

The slope of a line passing through points $(1,2)$ and $(10,20)$ is ___.

Answer 1

The slope of a line passing through points $(x_1,y_1$ and $(x_2,y_2)$ is $\frac{y_2-y_1}{x_2-x_1}$.

Given the two points are $(1,2)$ and $(10,20)$.

Substituting in the equation gives slope = $\frac{20-2}{10-1}=\frac{18}{9}=2$.