Graph sinusoidal functions: phase shift (practice) | Khan Academy

Phase shifts can be tough! Use your period formula (T = 2pi / b ) and think about what point was the "original" y-intercept. Feel free to try this with desmos.

[@peter_c_]

Got to this quiz on Khan Academy and was confused AF. I hadn't even heard the term phase shift before, and there were no KA videos explaining what to do for these types of problems. Thanks so much for this lesson-it was an absolute lifesaver for me lol.

[@Sunny-gg9oh]

thanks a lot

[@whatsittoya7718]

Thank you for this! It’s as if the videos for this were not made. Glad I can now fill in the gaps.

[@cube6338]

Indeed 🥲I need this so bad

[@saihaasini6699]

Hello, I'd been struggling with this concept for more than a month. There were no videos relating to interpreting the trigonometric function from its graph in Khan academy or TH-cam. Finally, I found your video, and it was a big sigh of relief. Thanks a lot for this video, you deserve much more!

[@WHRIHFKJYERHWTELRHQY]

thank you !! i love the internet.

[@NoahWright-v1f]

Thanks, man, this was driving me crazy.

[@AudieOnion-on7it]

Thank you soo much!! This literally explains exactly what I needed to know without being confusing!

[@Zherlock_]

Thank you

[@dannyrios2004]

THANK YOU

[@kaylasvegas4660]

thank you! I hope you have more examples! I was so engrossed in your explanation I didn't notice when your child left! Respect!

[@cheeseboi9740]

1:04 kid phases out of existance!!! epic tutorial!!!

[@Amazoninspiration]

3:15 That is the point that I struggle the most.

[@ratnagoka]

thank you this helped a lot for my freshman hs prep...appreciate this !

[@sophiacope5921]

Thank you! Super helpful.

[@legendbreaker2475]

Bro is taking care of childrena dn teaching math at the same time, he is a G, I could not handle that. Thank you for the sacrifice of your time. Keep doing what you are doing

[@Sir_Rex]

Thank you so much, that helps a lot

[@karenalvarez2396]

Is there another way to get the midline without looking at the graph ?
Your video is very helpful! I was struggling with this for two days!

[@karenalvarez2396]

@@edgarzamora6067 What about when we do not have the equation but we only have two points like in this video?

[@karenalvarez2396]

@@edgarzamora6067 Cool! Thank you! make more videos like this

[@jonathanchen7540]

holy fucking shit
SAME

[@kaiden0s]

Thanks! Your video helped me a lot

[@emaleespringfield1424]

That was SO SO helpful! Thank you!

[@tkhue3296]

The altitude of the International Space Station t minutes after its perigee (closest point), in kilometers, is given by
A(t) = -sin[ (2pi (t + 23.2) ) / 92.8 ] + 415
​
The International Space Station reaches its perigee once in every orbit.
How long does the International Space Station take to orbit the earth? Give an exact answer.
I find this is more challenging from the same exercise section .

[@deni5industriez954]

why is it -3.5 but not +3.5? That's the only thing I don't understand and so can't move on. In my understanding, if the graph is moved in the right side then it means it moved in the positive direction so it's +3.5 but not -3.5. I know it's wrong, but just can't understand why. Please somebody explain, I will be very grateful.

[@dannyrios2004]

You have to understand that the original form is a sin(bc+c) + d. to move things to the right, you subtract by -3.5 to show that it shifted right a horizontal distance of 3.5. if it were to move to the left, we would use +3.5 to show that.

[@chriso.wilkie7915]

Very useful information. Almost could have been perfect without the baby noises

[@jonathanchen7540]

THANK YOU

[@trollz2576]

great video!

[@AmitBarGil]

Can you do the same video without the child?

[@fieryphoenix23]

The man has a life, appreciate what he sacrificed to make this video.

[@urmotherisgae543]

The child MUST be in the video or the god(s) will smite him.