Observe the given graph :
\The parent function is an absolute value function, i.e, .
Graph of the function is : \ \
Let be the function after transformation.
Observe the two graphs f and g :
\The graph of g is a horizontal shift of four units to the left followed by a downward shift of two units of the graph of .
So, the equation for the given graph is .
The equation for the given graph is .