Wednesday, January 26, 2011

Alex`s scrbe Post for January 26/10

For Math today, we got a few problems to do.
1.A banquet hall charges $100 for the hall and $20 per person for dinner.
(a) Create an equation to model the relation
This equation would be c=100+20p because there is $100 plus the $20 and p is for people.
(b) Complete the table of values
After it is completed it should look like this because when you use the equation, depending on the number of people, you multiply however many people there are in the column at the end of the equation to get the total cost
(c) Graph the relation

This is the first graph before I graphed.

This is the graph once I have graphed the points from the table.
(d) use the graph to determine the cost of 22 guests.

I put points in between 20 and 25 to get to 22 and then I made a line going up to the line that connects all of the points, and then I made the line go to the left to see the total cost of 22 guests which is $540.
(e) Verify your answer to (c) by using the equation to calculate the cost of 22 guests.
(f)How many guests could you pay for with $1100?Use extrapolation or the equation to arrive at your answer.
We are going to use extrapolation, the equation, and a chart the show the answer.
First, we will use the equation.
Second, we will use the table.

And third, we will use extrapolation.
Remove Formatting from selection
It shows that 50 people would equal $1100 by following the bold line.
The homework is read pages 220-225, cyu#1, practise c/e, apply any four, extend any 1, and do 6.2 in the homework book.
Sorry that the graphs are not just like the ones in the worksheet.
The next scribe is Kenneth

Saturday, January 22, 2011

Hello fellow classmates, this the blog for January 20, 2011.

As you know we received an assignment on making charts for the outrageous flower costs. We did these charts and realised that something was wrong. The rate seemed to go down like a slope instead of going up.This was called a negative slope. Negative Slope refers to a mathematical formula rise. Y going up and x going across.
(0,10) (8,2)
x, y x, y going down by 2 and moving to the right by 1. so this would make -2 divided by 1. -2. So the negative slope is -2.

Next we learned about the equation y=m x + b
m being a slope, and b the intercept of when the rate Finally wher y intercepts the origin.( 0 ).

Here is the rest of the work we did: y = 5 over 2 (x) + 20
y= 5 over 2 (1)
2 y =5x 37
2y = 32 -5x
2y = 37 - 5 (1)

2y over 2 32 over 2 y = 16

Wednesday, January 19, 2011

Linear Relations Jan.19.2011

Hey guys so Today in class we learned about Linear Relations ...

1) The first thing we did in class was copy some words down so if you didn't get these words here are all that we wrote during notes...

linear relation
linear equation

2) So the next thing we did was do some questions that Mr. Bake gave us and the questions were about the flowers (red roses, pink roses, and carnations) and we had to spend all of the money to figure out how much flowers we would get at the end and how many possibilities we could do differently...

All flowers and No change all money has to be used
1. pink roses $2.00 carnations $1.00 and you only gotta use 10 dollars

So there were 6 possibilities for this answer and here they are...

Pink roses Carnations Money
5-0 10
4-2 10
3-4 10
2-6 10
1-8 10

2. red roses $5.00 carnations $1.00 and this time you only gotta us 27 dollars

So there were also 6 possibilities for the answer and they are...

Red Roses Carnations Money
5- 2 27
4- 7 27
3-12 27
2-17 27
1-22 27
0-27 27 roses $5.00 pink roses $2.00 and you only gotta use 37 dollars

So there were only 4 possibilities

Red roses Pink roses Money
7-1 37
5-6 37
3-11 37
1-16 37

So you can see that when you look at these 3 questions there is also a pattern in them because in question 1 you can see that the graph is ascending and descending orders and they go up by 2's and down by 1's....

For question 2 the pattern is going up by 5's and going down by 1's

For question 3 the pattern for this question is that is it going up by 5's and down by 2's

.... So yeah here is what we did in class today and just a REMINDER that you guys gotta hand in your stash-it on Friday to make any changes ( i think) and the computer assignment with :


AND!! for homework you guys gotta finish the graph Mr bake gave us!!

Well since no one or I mean sometimes people who do the scribe maybe will be chose tomorrow I guess but yeah thanks for reading my scribe post!!
P.S please correct me if I made any mistakes but anyway see ya!!

Thursday, January 6, 2011

Raquel's Scribepost for January 6 2011!

Today, In math class Mr.Backe gave us some words that we have to find the definitions for
- Coefficient

-Degree of a Term
-Degree of a Polynomial
-Like terms

We also learned about " like terms. "


There are other examples.. but they take to long to do..

We learned what to do with monomial, binomials, trinomial with a chart:

-The chart is kind of ugly.. sorry. Remember to do your homework!!