yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Interpreting plotted points


2m read
·Nov 11, 2024

The graph below shows the relationship between hours of exercise and hours of screen time for a group of five friends on Thursday. So if we look over here, we can see that here on this horizontal axis, when we're going from the left to right, it says hours of exercise: so half an hour, 1 hour, 1 and a half hours, 2 hours, 2 and 1 half hours.

Then here it shows hours of screen time. For example, it looks like Le Yang did zero hours of exercise, did no exercise, and spent seven hours in front of a screen. Not something that I would recommend. It looks like Cava spent half an hour; had half an hour of exercise on Thursday—this is all describing what happens on Thursday—and had 5 and a half hours of screen time. You see that right over there?

We could keep going with all the other data points, but let's see what they're asking us. What is the meaning of the point marked Maxime? I think that's how I would pronounce that. So, Maxime is right over here, and it looks like this is the point (1, 4) because our horizontal coordinate right over here is 1, and then our vertical coordinate is 4.

So point (1, 4) is the hours of exercise, so Maxime's exercise is 1 hour—1 hour of exercise—and they spend 4 hours in front of a screen on that Thursday: 4 hours screen time.

All right, so let's see which of these choices say that. Let's see, it is: Maxime had 1 hour of exercise and 4 hours of screen time. Yep, this looks exactly right! If you just wanted to check the other ones: Maxime had 2 hours of exercise and 8 hours of screen time—that would put them way up here, and that's not where the point was, so we'd rule that out.

Maxime had 4 hours of exercise and 1 hour of screen time. Four hours of exercise is not even on this; we’d have to go off the screen, so we’d rule that one out. Maxime had 5 hours of exercise—once again, that’s not even on the screen here, so that is so we can rule all of them out.

This third choice, they’re actually trying to confuse you because they’re swapping the hours of exercise and screen time: Maxime has 1 hour of exercise, 4 hours of screen time—not 4 hours of exercise and 1 hour of screen time!

More Articles

View All
Why was Reagan's presidency so significant? | US Government and Civics | Khan Academy
Why was Ronald Reagan’s presidency so significant? Ronald Reagan plays an important role in the modern presidency for two big things that he did. One, on the domestic front, he broke considerably with the kind of way of doing things in Washington. He, uh…
Worked example: Calculating E° using standard reduction potentials | AP Chemistry | Khan Academy
Let’s do a worked example where we calculate the standard potential at 25 degrees celsius for this reaction. In this redox reaction, silver cations are reduced to form solid silver, and solid chromium is oxidized to form the Cr3 plus ion. The first step …
Snow DNA Reveals New Way to Track Animals in Winter | Short Film Showcase
I’ve learned to appreciate the quiet in the cold. It’s just not something you did in any other place and in any other season. We’re the loudest things out there, thinking about rare species. They’re such an important part of the landscape and something th…
Testing a Shark Deterrent | Shark Beach with Chris Hemsworth
I think it’s fair to say, however good we get at keeping humans and sharks apart in the ocean, there will always be moments when we meet. In those worst-case scenarios when sharks bite, is there anything that can be done? Charlie Houveneers is a scientis…
Origins of life | Biology | Khan Academy
We have many videos on Khan Academy on things like evolution and natural selection. We think we have a fairly solid understanding of how life can evolve to give us the variety, the diversity that we’ve seen, and the complexity that we’ve seen around us. B…
How to Manage with Ben Horowitz (How to Start a Startup 2014: Lecture 15)
So in Sam’s originally sent me an email to do this course he said, “Ben, can you teach a 50-minute course on management?” I immediately thought to myself, “Wow, I just wrote a 300-page book on management.” So that book was entirely too long, and I didn’t …