How to determine when a graph is increasing and decreasing

The video tutorial explains how to determine when a graph is increasing or decreasing by observing the direction of the graph and the points where it changes direction. It highlights the concept of infinity, with negative infinity to the left and positive infinity to the right. The tutorial identifies intervals where the graph is increasing or decreasing, emphasizing the importance of recognizing these changes to understand graph behavior.

What do the arrows on a graph typically indicate?

• The speed of the graph

• The direction towards infinity

• The shape of the graph

• The color of the graph

From which interval does the graph increase according to the corrected explanation?

• From negative infinity to zero

• From two to positive infinity

• From zero to two

• From zero to negative infinity

What happens to the graph between the points of zero and two?

• It oscillates

• It remains constant

• It starts increasing

• It starts decreasing

What is the behavior of the graph after the point two?

• It increases to positive infinity

• It decreases to negative infinity

• It remains constant

• It decreases to zero

What should you notice to determine if a graph is increasing or decreasing?

• The color of the graph

• The labels on the graph

• The points where the graph changes direction

• The thickness of the graph line