Observe the graph : There are two line segments.

First line segment is passing through the points $\"\"$ and $\"\"$ .

Second line segment is passing through the points $\"\"$ and $\"\"$ .

The line equation passing through two points is $\"\"$ .

Equation of first line segment :

Let $\"\"$ and $\"\"$ .

Substitute the points in line equation.

$\"\"$

Equation of second line segment :

Let $\"\"$ and $\"\"$ .

Substitute the points in line equation.

$\"\"$

Hence, the piece wise function $\"\"$ .

$\"\"$ .