Increasing and decreasing intervals

The  exercise appears under the Algebra I Math Mission. This exercise practices finding increasing and decreasing intervals of a function.

Types of Problems
There is one type of problem in this exercise:
 * 1) A function $$f(x)$$ is plotted below. Highlight an interval where $$f$$ is increasing/decreasing.: This problem has a coordinate plane and user is asked to move the orange window to select part of the function.

Strategies
Knowledge of intervals are essential to ensure success in this exercise.
 * 1) If an interval is increasing, it will be on a part where the slope is going up.
 * 2) If an interval is decreasing, it will be on a part where the slope is going down.

Real-life Applications

 * 1) Problems like this will appear on standardized tests, like the SATs and the ACTs.