Video Gallery

Lesson 8.5 Day 1 #12

Go to Video Gallery Added Mar 10, 2017 •

Copy this URL:
Embed code:	<iframe class="edlio-embed-player" type="text/html" width="640" height="360" src="//www.westerncenteracademy.com/apps/embed/?v=140511" frameborder="0" allowfullscreen></iframe> Change dimensions

Go HD

Show Transcript

Okay, class welcome. I'm going to help you out with over 12 on your homework assignment for the weekend with an 8.5 day 1 I have written out. Function white equals -2 times that you've I know mel's one of them being x -3 the other one x+ for the first thing. We do is we Identifier axis of symmetry no excuse me first thing to do is sign are x intercept?  and just Jenna Fireman this case we can see that are x intercept relates to the 2pi Ml. One of them will be 3, 0 and the other one would be -4. Comma Daryl so those are two of exodus that's pretty easy to do then we find her axis of symmetry by adding. I'll try it again and our t & Q together so at least two values of our x intercept. Together and dividing them by 2 cuz we want half way between the two. So then we will get this a b- half.  Traxxas estimate Would be negative half.  Alright from there, we're going to move on to signing on for checks and our vertex is going to ask. Basically we take this guy you were accent symmetry does x equals 8/2 we know that our vertex sits on our access the symmetry? So are vertex will have negative half comma something. Sween Rx value of over text we just need to find a way value to do that. We're going to plug this may. f*** back into our original function as well for what my equals -2 we're going to substitute negative house, right? -3 negative half again Plus 4 So you're welcome to keep your access centuries a fraction. I also told you you could write it as a decimal if that is easier. Are you to work with when it comes to plotting your points?  You can do it both in the vortex or the axis of symmetry?  Okay, I'm going to move on. I'm going to keep mine's fractions. That again, you're welcome to use decimals, so white gold -2.  And this case. Negative 1/2 minus 3 I'm return half into a fraction.  Please answer n**** screen diffraction and positive for on the find a Common 2. Later which will give me, too.  and 6 2 + 8  And rewrite it simpler down here. soaking I'm combining a fraction at a whole number. It's helpful to take that fraction of first macy's may take a whole number first negative faction. We put it over the phone number one. and then finding the common denominator between your faction, so I started off with a half so I need the common that we have to and just convert your home number the faxes that have the So they're equivalent. Okay. I'm going to keep going. So this will become negative. 7/2 x 8 pods 7  multiply needs together 767 is 49 2/10 to 4 so this case. I have a -4. 9/4  Any of those when I go to multiply that times the home number 2 again? I can make this whole number to the fraction play over one and I can't. cash reducing  So this -2 can go and set this positive for two times. so I end up with white people in a negative type a negative a positive to have 49 apps at this point instead of writing 49/2 which I'm going to right. Here's my wife value.  I could also write as a decimal to help myself figure out where exactly 49/2 would fit my wife. So in that case you just divide 2 and 249 that was a note to goes in the 5025 type. So this case to goes in A 4924. To get 24.5 seconds also be your vertex so that can be another choice of putting your vertex instead of fractions appear alright. vortex in decimals to the -0.5 + 24.5 and that just might be easier to plot. Point hello highlight what we have so far so that we can determine how to how to figure out our x and y axis we have our x intercept we need to plug those in Rx access. We have an axis of symmetry at -5 or take a 0.5 that's going to fit to the left of our why access. I have a vertex and I'll highlight the decimal at negative half cuz it's going to sit on acid century and all the way up at 24.5 or 24 and a half. So this point number in my why access it might be convenient the number 8 by 2 there's some sort of number that can help me get up to 24 so probably now. To just to make it convenient for you guys. We move my recording of the way, okay. Let me go over to the grass. and begin  Please see my ex my access.  So my why access I do need to Reach positive 3 + -4? and  I don't like that. okay, and since my Text is actually going to sit above my Ex access. I will put my Ex access down as low as I can on my way access down. Make sure that I can spread out and get to the positive 3 and the -4 and both cases. So far so good when you get all my tools out of the way now. I just need. Denver  my Ex my access.  so again the number my y axis I To be convenient for my 24 1/2 here if I never too large it's going to be hard to get to that half so I'm going to attempt to number by to see if I can make it up. Let's say that to 468. 10  12 it doesn't look like in the have room 14 16. 2022 maybe 2426 I'll just take. Mike Graff a little bit longer here.  Like I said f***. Then just keep it going a little longer so I can get halfway between basically halfway between 24 and 25 so I'll just at the estimate where my point is that point alright? and I probably number by once but I might skip some space just to space out my number, so And if not that works, too. 1 2 3 and then -1 I get to it is 384.  Alright. Now I'm going to plan my access the symmetry I'm the change the color so you can see it. You know it's it's it negative half. Hey, I thought the axis of symmetry I know my Ex interest. Are at -4 and positive 3 and right now it before I put my vertex. I want to make cinemax of symmetry does look like it's sitting. Halfway equal distance away from my 2 x intercept of the desk, so I just need a plot.  my vertex and since 25 would be Way between here. I'm going to kind of go just estimated. It's a little lower than half 24 and a half and then attempt to make a curve. uship  not a piece. Alright, so it's a deal. Longer graph for you guys because you have to get to 24 1/2. I don't recommend numbering by Force.  Or 6 if you do you would just probably have that point. Close to the 24th is 24 and a half of just need barely above it.  Alright, that's it. That's all we need to do for this crap. There's no comparisons and no parent function.

Video Gallery

Lesson 8.5 Day 1 #12

Popular Videos