If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

### Course: 8th grade foundations (Eureka Math/EngageNY)>Unit 5

Lesson 1: Topic A: Foundations

# Interpreting graphs of proportional relationships

Learn how to read and understand graphs of proportional relationships.

## Want to join the conversation?

• For the question at , isn't it supposed to the distance in 5 hours? Not 4? Why is it true?
• Well spotted! It is indeed 400 km in 5 hours, not 4.
• He said they we drove 400 kilometers for 4 hours but it was 5 hours , just saying the small problem ;) ;) but the video was useful
• Yes, you are right. Sal made a mistake. There is a correction box explaining the error.
• At Sal said that the distance is 4 but shouldn't it be 5.
• The first question doesn't tell us what is going on. Is this a mistake?
• no, it is just about finding proportional relationships
• At , point A isn't supposed to be checked. The vertical coordinate of point A is supposed to be the distance driven in 5 hours, right?
(1 vote)
• Yes, you are correct. Sal made a mistake. There is a correction box explaining the error.
• sory but i din't understand
• Watch the video again and pay attention to what Sal is doing. This might help!
• how do u do a back flip
(1 vote)
• Why at , did he say that the first option is correct when it was not. The vertical coordinate of point a was five hours when he said it was four hours. That would make it 320 kilometers instead of 400 kilometers.
(1 vote)
• You are correct. Sal made a mistake. There is a correction box that pops up to explain the error.
(1 vote)
• useskhanacademyforstudy you are correct. The page has a little clarification that says that he was wrong.
(1 vote)
• Isn’t that one in one of the practices?
(1 vote)