Video Gallery

DILATIONS USING COORDINATE PLANE

Go to Video Gallery Added Nov 05, 2013 •

Copy this URL:
Embed code:	<iframe class="edlio-embed-player" type="text/html" width="640" height="360" src="//kwhite.mcisd.net/apps/embed/?v=45378" frameborder="0" allowfullscreen></iframe> Change dimensions

Go HD

Learn how to find the scale factor when graphing figures on a coordinate plane

Show Transcript

welcome guys and today it's weird I do a mini lesson on dilation what I want you to do is to take her paper and you're going to create a coordinate plane there it is I wanted to go go ahead and make it go up from negative to positive 10 on the horizontal axis which is your ex and for your wine access make a call from positive 10 - -10 as well go ahead and do that right now after you draw it I want you to go ahead and plop those three point and we're going to go ahead and write down the coordinates  there they are go ahead and do that and we're going to positive for a couple cancel that you can do that  so now that we have our three Corden points the next thing you want to do is we want to connect them again this lesson that I'm giving you right now it's going to go hand-in-hand with the handout that you're going to do later that is not only did we connect our points but we also gave them vertices the vertices have an Abbey in a seating so this right here is triangle ABC the next thing that we want to do is we're going to plot three more points and you're going to trade or connect with points and you're going to make another triangle this is going to be your dilation and quick  29 okay so we have a vertices can hear the points of your new triangle  a prime  is going to be 3 to be Prime going to be 9/8 and C priam's going to be 9 too so we'll posit so that you can go ahead and do this moving on Moving On we got to look at this triangle and we don't want you to know this is to look at the base this is the base I want you to count how many units has the base and I want you to count the height how many you is the height  buy units with me in the little squares you want to count the squares  and hopefully we came up with it how many units was it your Bae system your Heights going to be three and go ahead and label that this is the original triangle  what I wanted to do next is to find the base of this and the base of that a good way to do it as you can count from this point all the way down to the other point and hopefully you came up with with what hopefully came up with 6  and this one is six okay go ahead and write dilation on sign it so we're done with her with our crap you plotted your points on the next thing you counted the Mason the height you wrote the numbers next to the shapes the next thing I want you to do is to draw those triangles under your corner plants going to draw them again does a mother of attention is repetition so you're going to get this I put old for original right here and this one is D for dilation  add after you read throttles triangles I know I didn't do it on this triangle but going to do it anyway abcn since this is the dilation we call this a prime you need to put a little - right there apostrophe I'm sorry be Prime and see prank so you do that Andrea if you're going to write the problem turn ants will always get these problems wrong because they don't know which one is the dilation another words when they read a word problem like that David confused with the wording and they always end up putting the numbers in the wrong place so it's reads triangle ABC sorry  triangle ABC  What triangle is that is one it was dilated so we start here we start here and it was used to create all the new creation is the dilation cuz was created it ends here this is your dilation  so positive can finish copying that and this is where trying to figure out write this down find the scale factor number scale factor is what what does scale factor do it's what changes or a figure it changes it to be bigger or to get smaller that's scale factor so what's the scale factor we know that I went small to big so my scale factor has to be greater  then I has to be greater than 1 well let's go ahead and do this take a number from your dilation  take a number from your original  NJ vinyl what do you get  what's 6 / 3  two it's two times bigger and we figured it out  so that will cut it for today

Uploaded by Jorge Zuniga.

Video Gallery

DILATIONS USING COORDINATE PLANE

Popular Videos