Scribe Post for Tuesday 3/25/08

Class Blog – 3/25/08 (Graphs and examples are shown on the moodle page under this date)
1) 1st we did the do now which consisted of us finding the slope of the points given on the graph. After we found the slope, we had to find the equation for the segments we made to find the slope, and afterwards we had to find the y-intercept of that line as well.
2) The second part of class we discussed Mr. Rochesters “Benchmark” the topic he chose was the Year and Income of a salesman. The data he used was –

Independent Variable = X
Dependant Variable = Y
Salary “depends on the” year
Y depends on X
Salary “is a function of” the year.

3) Further information he used is on the graph that I uploaded with this post. It shows exactly what he did on the graph he used to explain the project. The whole class was to teach us what we are going to be doing on the benchmark.

The scribe for Wednesday is Lauren

Addition to Subtraction

To change addition to subtraction what you have to do is leave the starting number the same but change the sign of all numbers after that to the opposite sign. Also change the addition sign to subtraction because subtracting a negative is just the same as adding a positive so the sum will still remain the same.

Example : 4 + 5 = 8
4 - -5 = 8