$\"\"$

The parametric equations of cycloid are $\"\"$ and $\"\"$ .

Graph:

Graph the parametric equations $\"\"$ and $\"\"$ .

$\"\"$

Observe the graph :

The graph is not smooth and discontinuous at $\"\"$ .

Thererfore, the graph is discontinuous at $\"\"$ .

$\"\"$

Graph of the parametric equations $\"\"$ and $\"\"$ .

$\"\"$

The graph is not smooth and discontinuous at $\"\"$ .