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September 21, 2014

September 21, 2014

Posted by **%%%Rena%%%** on Sunday, July 1, 2012 at 4:02pm.

2x-3y=-1

heres my answer (-2,-1) am i correct?

- Damon *Algebra -
**Damon**, Sunday, July 1, 2012 at 4:08pmTo find out if you are right or not, put your answer (x =-2, y=-1) back in each equation

equation 1

3(-2) + 2(-1) = ??? -8

-6 - 2 = -8 sure enough

equation 2

2(-2) - 3(-1) = ??? -1

-4 + 3 = -1 sure enough so you did it right

- Damon *Algebra -
**Damon**, Sunday, July 1, 2012 at 4:13pmNow the how :

equation 1

when x = 0, y = -8/2 so y intercept at (0,-4)

when y = 0, x = -8/3 so x intercept at (-8/3,0)

draw that line

equation 2

when x = 0, y = 1/3 so (0,1/3)

when y = 0, x = -1/2 so (-1/2, 0)

graph

see if they hit each other at (-2,-1)

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