Tuesday

July 29, 2014

July 29, 2014

Posted by **%%%Rena%%%** on Sunday, July 1, 2012 at 3:32pm.

y=2x

x+y=0

im working on solving systems by graphing. I dont know how slope work yet, right now we working on x and y intercepts. I'm Lose please help

- Algebra 1 -
**Damon**, Sunday, July 1, 2012 at 3:36pmuse 2 x for y

x + 2x = 0

3 x = 0

x = 0

y = 0

======================

to graph

first one

when x = 0, y = 0, so through origin (0,0)

pick another x

when x = 1, y = 2 so through (1,2)

draw that line

second one

when x = 0, y = 0, so through origin (0,0)

when x = 1, y = -1, so through (1,-1)

draw that line.

They cross, sure enough, at (0,0)

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