Domain and Range

[Lighthearted98]

can i get a copy of your gsp file?

[TaylorM2625]

This helped me so much. Thank you so much!

[jennasimmonsx3]

Super helpful!



[gdawgrapper]

I just started teaching precalculus this year and this video was abolutely masterful. Not only was the explanation of the domain and range very clear, but the translation to interval notation is exactly what my students need at this time. I plan to make a video response to this of one I made that goes along with your wonderful video.

[ericderafera09091994]

ya, i think, pls create harder examples..

[soulreaperichig0]

:( ??

[nodymnds4u]

YOU HELPED ME SO MUCH!

[shettsrc]

@nodymnds4u Glad to help out! Shetts

[Vuongedge]

this is good for beginners, but it won't work for much harder ones, triple composite functions involving inverse etc.

[ubluff]

I love your loud voice it make me understand better.

[buttali100]

aaaala thnkzzz

[kimblahkim]

WHOA.

this just got a heck of a whole lot easier!

(that program really helped :D)

Thank you so much!!

[shettsrc]

@XxAngelicBeautixX

Basically YES, that is all there is to it. Of course to find the range squish the graph TO the "Y axis".

[XJakeAlvarezX]

HEY BUDDY

[joker2011]

I'm going to ace this test....Saved me THANK YOU!

[TheSalvation777]

best explanation ever!

[cjrock0101]

THANK GOODNESS.  THIS HELPED ME SO MUCH

[galachoxy]

thanks alot,,,,,,it's really enjoyable to study math with u,,,

[silluettostyle]

Great video, the teacher's energy in teaching is very encouraging to learn & understand!

[shettsrc]

The domain BEFORE 8:30 in the video is from -4 to 6, So that is written in interval notation as[-4,6).

For the range you collapse the graphs to the y axis. Note there are single points on the y-axis at -3, -1, 1, 3, and 5. How is this written in interval notation?

Like this [-3,-3], [-1,-1], [1,1], [3,3], [5,5]. I know it is a little silly to write it this way and much easier to simply list the numbers.

Hope this helps,

If you have anymore questions, please ask!

Shetts

[mohameddebs]

i didnt understand after 8:30...what did he do for the domin there...

[XMRZEZOX]

btw....can u give me the app. name plz !!!

or if it a website..

[XMRZEZOX]

OMG thank u soo much ... it really helped me aloot thnx again :)

[shettsrc]

Glad to help!!

[moelicious416]

This is an excellent teacher. his tone of voice makes you excited to learn and makes you tune into his words. There are less than 5% of teachers in north america who are as good as this man.

[Swedezor]

Must be bad teachers in America if you praise him this much.

[ssabga]

awesome. thanks!

[RoaringBeaver]

This is a great video. I finally understand finding the domain and range for piecewise functions. The "collasping" really helped.

[Salvi71192]

thank you so much .. ^-^

[SFConifer]

This is a veritable revelation....I'm converted to calculus...thank you, Jesus!

[shawking6991]

HOLY CRAP

[j0ren24]

thank u very much sir

[joethebom]

i love u, thanks

[vindieselk]

thanks thanks thanks .. thats great

[rockerresident]

im confuse on the squeezing of the line like in 7:45..cause some points that i think should squeezed are not squeezed ..what's the rules of squezing ...help please ..

[shettsrc]

The bottom of the sin curve starts at the y=1.5 and the top of the sin curve is at y=4.5.

So that is why your range is from 1.5 to 4.5

[rockerresident]

there are some lines squeezed in the midle of the axis lines how is that

[shettsrc]

When you are finding the "Range" squish the sin curve towards the "Y" axis. Note: the curve incorporates all points on the y axis from 1.5 to 4.5. I hope this helps!

Shetts

[rockerresident]

ugh  hehe ok thanks sir

[moelicious416]

@shettsrc

Great stuff teacher. Thanks.

[ilikesubaru]

Dude what program are you using? ROCKS!

[shettsrc]

It's Geometer's Sketchpad.

[luisialdama]

thanksssssssssssssssssssssssss­ssssssssssssssssssssssssssssss­ssssssssssssssssssssssssssssss­ssssssssssssssssssssssssssssss­ssssssssssssssssssss

[EUNWHUi]

AHHHHHHHHH IM FROM NPHS TOO. AHHAAH

[bigpupchuck]

Dude you rock, might pass my first Calc test tom!

Wish i had you in high school, my college alg would be a breeze!

[shettsrc]

Bigupchuck,

How did you do on that calc test?

Shetts

[blacksunkent]

good, got someone out from toilet ,haha cause got flush sound

[lilgg057]

Thanks man, you're good people

[pedobear876]

this video pwns

[Annija089]

wow... that was actually easy!!! But our lesson's got these 2x squared + 89y = something, find the D and R. I have NO idea!!!

[Warrantofficer13]

Yo thanks, good teaching but here in canada its completely different, we have to do different formulas for domain and range, like y coordinate (less than/equal to sign) X or Y if range (less than equal to sign) and the other bigger coordinate.

[glock164]

WOW!!!!! Great!!!!!!! thanks

[shettsrc]

I'm glad you liked it, I really try hard to make math easy for students! Shetts

[judith24]

Thanks, thats very clear!!

[POPtheoriginal]

lol thx