SOLUTION:
Case: Functions interval
Given: A function graph
Required: To find the region where the graph is increasing
Method:
The region where there is increase is where the graph has a positive slope, i.e. the region where the graph is moving from bottom left to top right.
We see the region on the graph as (-2, -2) to (2, 2)
Picking the x- axis only, this is (-2,2)
Final answer:
The final answer is (-2, 2)
