How to use absolute value Videos

• 1. 2.7 - Use Absolute Value Functions and Transformations
• 2. TI Calculator Tutorial: Absolute Value
• 3. Radicals and Absolute Values - Brightstorm Algebra 2
• 4. Graphs of absolute value functions | Functions and their graphs | Algebra II | Khan Academy
• 5. Graphing Absolute Value Functions with Transformations 6 Examples
• 6. Use absolute value functions and transformations.wmv (Section 2.7.)
• 7. Finding Absolute Value on TI-83plus/TI-84 Calculators

2.7 - Use Absolute Value Functions and Transformations

User Comments

Albatross Leo commented on 11 Dec 2014

Id pay a lot more attention in algebra if my teacher looked like this

kelsey sanchez commented on 26 Nov 2015

What about for ones that say Y= -2 |2x +2| + 4 ?

MsSucka commented on 04 Sep 2013

Is that you in the profile picture? Damn your hot.

Logan Pederson commented on 12 Sep 2013

Mr. Hiller likes dragons. Thanks for the video!

SuperL00k commented on 18 Mar 2013

I can tell you're hot by your voice :D

Stacey Roshan commented on 15 Oct 2013

So glad, thanks for leaving a comment!

Jeb's Personal commented on 01 Nov 2013

wow this helped thanks! :-)

Shannon Wynne commented on 20 Oct 2015

thank you so much!

Nick Lira commented on 14 Oct 2013

this helped a lot

ericnrmrf1 commented on 15 Jul 2013

lololololololol

soccerkakalm10cr7 commented on 01 Sep 2015

Thanks

TI Calculator Tutorial: Absolute Value

Radicals and Absolute Values - Brightstorm Algebra 2

User Comments

Math Learner commented on 06 Oct 2015

Corrected question: Can you explain why you need the absolute value sign around the "x" when you are calculating the absolute value of the square root of x^2. You said we didn't know whether x was negative or positive and then said that's why we need the absolute value sign. But you didn't explain why. If we don't know, they why choose absolute value rather than plus or minus x?

james cj commented on 16 Dec 2015

+Math Learner . Hi. I find it helpful to look at the numerical example of sq.rt of 3^2 and sq. rt of (-3)^2. The answer is always +3 or just 3. But if we use the unknown variable 'x' in the equation i.e. sq.rt of x^2 = x, then x can be +x of -x. So the sq.rt of x^2 is given an absolute value of x so that it satisfies the equation whether x is positive or negative.

Graphs of absolute value functions | Functions and their graphs | Algebra II | Khan Academy

User Comments

TechnologyExamined commented on 18 Nov 2014

My teacher just told us take the negative of the number that is in this case (-1). which will be the x coordinate of the vertex, and the (in this case) 9 is the y coordinate of the vertex. I know how to get the vertex, but can't understand the logic behind it when you show it. So to find the highest Y we need to have the rest of the equation be as low as possible, which means making the abs val = 0.... I think I just understood it through typing this out, but still not 100% sure.

Annie Hameed commented on 14 Jul 2015

Can you please do a video graphing a function like this using first and second derivatives??? thanks :)

626DENAwarriors33 commented on 14 Oct 2015

thank you i have a horrible teacher

Graphing Absolute Value Functions with Transformations 6 Examples

User Comments

E Reed commented on 01 Dec 2015

Ahhhhhh!! Finally!!!!!!!!! Thank you!

ProfRobBob commented on 01 Dec 2015

+E Reed you're welcome and thanks for watching and subbing!Spread the word:D

Andrews Fam commented on 06 Oct 2015

I have to say you're awesome!!!!

ProfRobBob commented on 07 Oct 2015

+Andrews Fam thanks!

Andrews Fam commented on 07 Oct 2015

Will absolutely do!

ProfRobBob commented on 07 Oct 2015

+Andrews Fam BAM!!!Don't forget to like, sub and share too:)

Mr FreshBest commented on 14 Sep 2015

How do you graph y=3|x|

Mr FreshBest commented on 04 Oct 2015

oh ok, thanks.

ProfRobBob commented on 03 Oct 2015

+Mr FreshBest Your graph has a vertical stretch multiple of three. So take y=|x| and move all the points 3 times as far from the x axis. What was point (2,2) will now be (2,6) for example.

Rita Rockhold commented on 10 Sep 2015

RobBob, you are an absolute lifesaver!!!! I met with a tutoring student for first time tonight and I couldn't explain something like your "example #4", but you made it all make sense!!!Thank you so very much!!!

ProfRobBob commented on 10 Sep 2015

+Rita Rockhold you are very welcome! THANK YOU for choosing my channel to brush-up with and sub to, and for helping the future mathematicians of the world:) Please keep spreading the word, our goal is 100,000 subscribers by the end of the year...BAM!!!

Alex Leonidovich commented on 17 Aug 2015

I have viewed quite a substantial number of alternative math-aid video materials, and have to admit that you are truly a teacher from God. Clear, laconic (yet plenty of material covered), committed to full coverage of various topics and quite humorous (which has been proven to aid memory retention....and makes math that much more fun). Thank you!!!

ProfRobBob commented on 24 Aug 2015

+Alex Leonidovich you're welcome and thanks for taking the time to share your appreciation and for choosing my channel to learn from...BAM!!!Please like, subscribe, support the ads and spread the word to help this channel keep growing and teaching others for free:D

Yuli-Hime commented on 04 May 2015

THAT HAND WRITING IS SO BEAUTIFUL OMG ;--;

ProfRobBob commented on 05 May 2015

+Yuli-Hime thank you, I even have a couple lessons for that if you need a break from math:)...and thanks for choosing, liking, and subbing! We really appreciate the support:)

Iago Soriano commented on 29 Apr 2015

Awesome video

ProfRobBob commented on 01 May 2015

+Iago Soriano thanks for watching and subbing!

Ashley Ceren commented on 12 Mar 2015

Haha I loved what you did at 15:00! Why can you not be my teacher?! 

ProfRobBob commented on 12 Mar 2015

Naaaaaaanaaaaaaaaa:)Glad to see you are still watching and enjoying my lessons +Ashley Ceren !Sounds like you just need to start a study group...all watch my lessons together and it will be almost like I was your teacher...BAM!!!

Use absolute value functions and transformations.wmv (Section 2.7.)

Finding Absolute Value on TI-83plus/TI-84 Calculators