Yeah, so i didnt do my aleks and now I'm mad, so i might as well get some points for this. I'm probably just going to do a basic review of stuff we learned in class, and stuff in aleks.
So, I'm going to start off by reviewing matrices, which was very easy.
[2 4] [8 3] [10 7]
[7 5] + [9 12] = [16 17]
Now on to subtracting matrices.
[18 6] [5 7] [13 -1]
[15 3] - [14 9] = [ 1 -6]
Now, i will review how to find the slope of a line.
(4,3) (7,2)
2-4/7-3
The slope of the line is: -1/2
The slope of a line is 4/3. Find the slope of a parallel and perpendicular line, using this slope.
For the slope of a parallel line, it is the same as the slope of the original line. So the slope of this parallel line is: 4/3
When finding the slope of a perpendicular line, you take the negative reciporcal of the original slope. So the slope of this perpendicular line is: -3/4
That's it for this review.
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