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
There Is No Settled Mathematics
There are two other scientific thinkers that I like who are unrelated to David Deutsch but come to very similar conclusions. One is Nasim Taleb, who’s popularized the idea of the black swan, which is that no number of white swans disproves the existence o…
Sadie's Summer Camp - Bonus Scene | Gender Revolution
NARRATOR: I met so many families, moms and dads, brothers and sisters, all adjusting to a new normal when a child tells them, “I’m not a boy or I’m not a girl.” But as the saying goes, it takes a village. So I wondered, how are the institutions who help r…
2019 Berkshire Hathaway Annual Meeting (Full Version)
Thank you, good morning and welcome to Berkshire Hathaway. For those of you who have come from out of state, welcome to Omaha. The city is delighted to have you here for this event. For those of you who came from outside of the country, welcome to the Un…
Khan Academy Ed Talks with Ned Johnson - February 2, 2022
Hello and welcome to Ed Talks with Khan Academy! I’m Kristen De Cerva, the Chief Learning Officer here at Khan Academy, and I’m excited today to talk to Ned Johnson, who’s an author, speaker, and founder of PrepMatters, which is a company providing academ…
Mistakes when finding inflection points: not checking candidates | AP Calculus AB | Khan Academy
Olga was asked to find where f of x is equal to x minus two to the fourth power has inflection points. This is her solution. So we look at her solution, and then they ask us: Is Olga’s work correct? If not, what’s her mistake? So pause this video and see…
Ask Sal Anything! Homeroom with Sal - Monday, June 29
Hi everyone! Welcome to our daily homeroom. For those of you who don’t know what this is, this is really a live stream that we started during Covid but have kept up. I guess it’s still going on, but it’s really a way to have interesting conversations or j…