Question

The origin $(0,0)$ lies on the $x$-axis.

Answer 1

A point plotted on a graph has an abscissa or the $x$ - coordinate $\left(x\right)$ and the ordinate or the $y$ - coordinate $\left(y\right)$.
An origin is formed by the intersection of the $x$ and $y$ axes. That is, when $x=0$ and $y=0$. Hence, the coordinates of the origin is $O(0,0)$.

Then clearly, the origin lies on the $x$-axis.

Therefore, the statement is true.

Hence, $1$ is the answer.