Modeling temperature through the day | Graphs of trig functions | Trigonometry | Khan Academy

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Khan Academy

Khan Academy

10 жыл бұрын

Practice this lesson yourself on KhanAcademy.org right now:
www.khanacademy.org/math/trig...
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Trigonometry on Khan Academy: Big, fancy word, right? Don't be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry ("trig" as it's sometimes called) has something to do with triangles. You would be right! Trig is the study of the properties of triangles. Why is it important? It's used in measuring precise distances, particularly in industries like satellite systems and sciences like astronomy. It's not only space, however. Trig is present in architecture and music, too. Now you may wonder...how is knowing the measurement and properties of triangles relevant to music?? THAT is a great question. Maybe you'll learn the answer from us in these tutorials!
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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Пікірлер: 21
@WizzRacing
@WizzRacing 10 жыл бұрын
Glad to see even teachers struggle with how to express the question.
@seanhoeppner2688
@seanhoeppner2688 10 жыл бұрын
Great video as always, Sal.
@chaynhungkhongkhet833
@chaynhungkhongkhet833 2 жыл бұрын
Wow i love sal khan .I love the way you teach me
@BeringRichard-te1xv
@BeringRichard-te1xv 4 ай бұрын
Good
@JellybellyWaffles
@JellybellyWaffles 10 жыл бұрын
How does this channel have 1.6 million subscribers and only have a few thousand views on each video?
@seanhoeppner2688
@seanhoeppner2688 10 жыл бұрын
He posts 1000s of videos. Not everyone has time to watch all of them. Most people, I assume, just watch the ones they need or are interested in at that time.
@Mipetz38
@Mipetz38 3 жыл бұрын
Its not just a channel but an entire website
@pooplauncher1175
@pooplauncher1175 10 жыл бұрын
what program do you use to do all the drawing
@dmitriidob6981
@dmitriidob6981 3 жыл бұрын
Sketchbook. You're welcome.
@NONo-nv5tr
@NONo-nv5tr Жыл бұрын
@@dmitriidob6981 replys to a comment 7 years ago
@dmitriidob6981
@dmitriidob6981 Жыл бұрын
@@NONo-nv5tr Yeap, right on time. That's all me.
@werewolfQ8
@werewolfQ8 7 жыл бұрын
didn't you shift in the wrong direction it should be -14 or +10
@VeritasEtAequitas
@VeritasEtAequitas 4 жыл бұрын
@@damianhowison7813 you mean subtracting? Shifts and scaling of x goes opposite of y.
@leizlarcega4592
@leizlarcega4592 3 жыл бұрын
i thought in the vertical part is the temperature, seems like the 10.5 represents the time
@daDarkElixir
@daDarkElixir 2 жыл бұрын
The 10.5 is the middle of the graph, the time is still X.
@XFG_Official
@XFG_Official 10 жыл бұрын
why does this guy need a youtube channel he has his own site?!
@MikeRidgway
@MikeRidgway 10 жыл бұрын
By having a KZfaq channel, people who are unaware of the Khan Academy web site (www.khanacademy.org) are able to find the organization's videos. Many who find Khan Academy's videos on KZfaq will eventually take advantage of Khan Academy directly from the organization's official site. Makes sense to me. : - )
@VeritasEtAequitas
@VeritasEtAequitas 4 жыл бұрын
The videos are embedded into the website.
@briannestewart4877
@briannestewart4877 7 ай бұрын
Dude. You made a mistake. I think you thought the 10.5 meant that t=0 also is t=10am. I can see 10am is supposed to be the high. Which occurs at 6 hours using F(t). So the phase shift would be t-4 because it needs to shift to the right by 4 hours for it to be at 10 hours. ❤
@realthefew
@realthefew Жыл бұрын
0-12 isn't the afternoon. If it's 10am at zero, it must be 12pm at 12, meaning it should go up at 12-24 rather than 0-12
@mountcarmel7116
@mountcarmel7116 5 жыл бұрын
you need to get your self prepared very well before you come to demonstrate. you did not make even why at 10 am F=0.
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