Graph Autograph Work Grátis

hello and welcome to mr barton's autograph video number 43 now this week we're going to take a break from all things statistical and we're going to get back to basics by looking at some good old-fashioned graph work on autograph starting with quadratics now there are quite a few ways you can teach the topic of quadratics on autograph um and the first is a classic way of getting students to come up with tables of values and points that line quadratic curves just to check that they can draw them and plot them so for example if students were drawing something boring like y equals x squared minus one the hopefully when they've worked out the table of values they may come up with some points such as zero minus one which you can get the scribble tool and get them to put a little ring around and what else is on that curve and so you've got when x is one y is zero so hopefully that'll be there when x is two y is three i hope my math is right here another point there maybe and another point there and once they've come up and popped those points on very nicely wiz on a bit of slow plot mode and then get autographed to check it so um enter equation you can either hit enter or click on the button there y equals x squared little tip if you want to do x square just hit x twice x squared minus one click okay cross your fingers and as the little turtle is about to appear fingers crossed you will go through all of those points nice so that's a nice simple way and you obviously can do that with any graph getting students to come up and plot the points and then just check whether um autograph agrees with you so that's quite nice and i'm just going to select everything and just hit delete on my keyboard so i have a clear screen um but nice than that you can get the old constant controller coming into place so once the students get to the point where they can factorize quadratics it's quite nice to relate the factorization to the graph itself so what i'm going to do this time is i'm going to enter myself an equation and i'm going to put y equals and i'm going to go for a bit of x minus a close the brackets and i'm going to go for a bit of x minus b and i'm going to close the brackets now before you do anything on autograph anytime you have any kind of constants in it's always a good idea to set them to a value when nothing changes so if we've been talking about the graph of y equals x squared it's nice to put those constants to a value of zero so we're still going to get the graph of y equals x squared otherwise things just seem to magically happen and in front of the student size without the understanding so let's leave a and b at zero click ok and fingers crossed we should get our graph of y equals x squared i've left me slow plot on so i'll just click that just to speed up the process and there it is and now what i can do is i can click on that graph click on my text box there click ok and that's going to keep track of the current values of the constants for me...