Identifying Proportional Graphs in Mathematics

The video tutorial teaches how to recognize graphs that show proportional relationships. It explains that a graph must be a straight line and pass through the origin to be considered proportional. The video includes examples and a challenge to help viewers practice identifying proportional graphs. The instructor encourages viewers to engage with the content by subscribing, liking, and sharing the video.

What is the first step to recognize a graph showing a proportional relationship?

• Check if it has a positive slope.

• Check if it has a negative slope.

• Check if it is a straight line.

• Check if it passes through the origin.

What is the second step to confirm a graph shows a proportional relationship?

• Check if it is a straight line.

• Check if it has a negative slope.

• Check if it has a positive slope.

• Check if it passes through the origin.

Which of the following graphs shows a proportional relationship?

• A straight line not passing through the origin.

• A curved line passing through the origin.

• A curved line not passing through the origin.

• A straight line passing through the origin.

Why does a curved line passing through the origin not show a proportional relationship?

• Because it is not a straight line.

• Because it does not pass through the origin.

• Because it has a negative slope.

• Because it has a positive slope.

What is the key characteristic of a graph that does not show a proportional relationship?

• It is a straight line not passing through the origin.

• It is a curved line not passing through the origin.

• It is a straight line passing through the origin.

• It is a curved line passing through the origin.

In the challenge section, why is the second graph not showing a proportional relationship?

• Because it does not pass through the origin.

• Because it is not a straight line.

• Because it has a negative slope.

• Because it changes direction.

What is the main reason the third graph in the challenge section does not show a proportional relationship?

• It changes direction.

• It is not a straight line.

• It does not pass through the origin.

• It has a positive slope.

What should you do if a graph is straight but does not pass through the origin?

• Check if it has a negative slope.

• Check if it has a positive slope.

• Consider it as not showing a proportional relationship.

• Consider it as showing a proportional relationship.

What is the final step to confirm a graph shows a proportional relationship?

• Check if it has a positive slope.

• Check if it is a straight line.

• Check if it has a negative slope.

• Check if it passes through the origin.

What should you do if you are unsure about recognizing proportional relationships in graphs?

• Ask a friend for help.

• Skip the topic.

• Ignore the concept.

• Re-watch the video and practice more.