The following are $12$ cost behaviour graphs. The total cost is shown on the$$y$-$axis and the volume$($activity$)$ is shown on the$$x$-$axis.

View the graphs.

For each of the following$$situations$,$ identify the graph that most closely represents the cost behaviour pattern of the cost in that situation. Some graphs may be used more than once or not at all.

$($g$.)$ The cost of direct materials for picnic tables when the wood in each table costs$$ $$45$