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
Writing hypotheses for a significance test about a mean | AP Statistics | Khan Academy
A quality controlled expert at a drink bottling factory took a random sample of bottles from a batch and measured the amount of liquid in each bottle in the sample. The amount in the sample had a mean of 503 milliliters and a standard deviation of 5 milli…
Examples dividing by tenths and hundredths
Welcome! So let’s see if we can figure out what 8 divided by 0.4 is. Pause this video and see if you can work through that. All right, so we’re trying to figure out what eight ones divided by four tenths is. One way to think about that is to think about…
Curvature formula, part 5
So let’s sum up where we are so far. We’re looking at this formula and trying to understand why it corresponds to curvature, why it tells you how much a curve actually curves. The first thing we did is we noticed that this numerator corresponds to a cert…
Tax The Rich
What’s up, Taxes? It’s Graham here. So normally, I don’t talk about topics that could get politicized or taken out of context, but I gotta say there is so much confusion and misinformation surrounding some of the new proposals aimed at taxing the rich th…
Calculating simple & compound interest | Grade 8 (TX) | Khan Academy
So let’s do some examples calculating simple and compound interest. Let’s say we are starting with principal, and I’ll use P for principal of $4,000. $4,000. And let’s say that we are going to invest it over a time period of four years. And let’s say th…
Day 10 Remodeling Update - The 2 unavoidable setbacks
What’s up you guys? It’s going here, so I figured I would make a very quick update video and share with you guys all the work that’s being done in this place. A lot has gotten done over the last week and a half that this has been going on. As you can see…