Scribe for Tuesday Nov. 20

OK I have taken the duty of scribing today!


So frist we did mental math and had a disscussion on a "saying" that was said in class when we had to find the product of the word fish. And we also got distracted on the topic of what salmon and tuna look like in live fish and sushi form.


Then we did:


Linear Equalities:


(graphing rules with logic testing)





Consider this:





-8x+4y-3>=0





The question is:





What do I do with this if I have no Graphmatica?!?


First you have to put it in a form your calculator will accept


4y>=8x+3





devide the equation by four to get





y>=2x+3/4 *( NOTE: it is two x because 4 goes into the 8 twice)*





NOTE: What i know!!!

• i know that the corresponding linear equation goes through(0,3\4)



• there is a line slope of 2

Here it is graphed:

(and yes i am using Graphmatica but that is because i am doing this at home and do not have the original screen shots)

Now which way do i shade it?Because in your graphing calculator you choose which way it unlike Graphmatica doesn't do it for you.






Do you shade blue or green???(so chosen for the colours because of the gray cup finalists)
now you choose a spot to see this is best if you choose 0.
yiou look at the eqation:
(you enter 0 as both the x and y values)
0>=2(0)3\4
0>=3\4
(the two is gone because 2 multiplied by 0 is 0)

you know that this equation doesn't woprk because 3\4 is not less then or equal to 0. so you know that you have to shade what is less then 0.
So you shade blue!!!!

I think that was about it.
We then finished the class with working on our Accelerated math.

• we have 40 objectivbes due by the end of the month
• there are TADD povillions tommorropw in 4 and 5 block
• and i am not sure who scribes tommorrow (SORRY)