Tytiana Whiteside Sept.10, 2010


Y-intercept
y=mx+b (m-slope)(b-y intercept)

Standard Form
Ax+By=C

Point Slope Form
Y-Y1=m(x-x1) (m-slope)

Given Segment Line AB A=(-5,2) B=(-7,8)
To find the midpoint
(x1+x2/2, y1+y2/2)
(-7+-5/2, 2+8/2) =(-6,5)

To find the distance
d=The square root of (x2-x1) to the 2nd power + (y2-y1) to the 2nd power
d= The square root of (2) to the 2nd power + (-6) to the 2nd power
4+36
d= square root of 40
d=2 the square root of 10
Ax+By=C
Matrix Function
2nd Maqtrix
Edit 2x3
3x+7y=-5
2x-4y=2
[3 7 -5]
[2 -4 2]

2nd Quit
2nd Matrix
Math
rref (B0
2nd Matrix
rref ([A])
[1 0 -3/13]
[0 1 -8/13]


Homework page 4 #1-8