Represent the following number on the number line:

$\dfrac{-3}{7}$

Draw a number line and mark a point O on it, representing the integer 0. Each point of division represents an integer and each length between two successive integers is a unit length.

As $\dfrac{-3}{7}$ is a negative proper fraction, it lies between -1 and 0.

Divide the unit length between 0 and -1 into 7 equal segments by making 6 equally spaced marks. Starting from 0, count backward (to the left) 3 segments. Label this specific position as point C, representing $\dfrac{-3}{7}$, as shown below :

Hence, the point C on the number line represents $\mathbf{\dfrac{-3}{7}}$.