How do i graph:

x – 3y = –12
2x – y = 1

Question

How do i graph:

x – 3y = –12
2x – y = 1

anonymous · Answer

sorry. its x-3y= 12 2x-y=1

anonymous · Answer

you looking to graph both and find where they intersect?

anonymous · Answer

will look like this http://www.wolframalpha.com/input/?i=x+%E2%80%93+3y+%3D+12+and+2x+%E2%80%93+y+%3D+1

earthcitizen · Answer

$$y = (x+12)/3,y = 2 x-1$$

anonymous · Answer

if you are going to do it by hand, probably the best think to do if fine the intercepts

anonymous · Answer

so for 
$$x-3y=12$$ find the x intercept by setting y = 0 get 
$$x=12$$ so you know (12,0) is on the graph. for the y - intercept set x = 0 and get 
$$-3y=12\implies y=-4$$ so you know (0,-4) is on the graph.  plot those two points, connect the dots

anonymous · Answer

repeat the process for 
$$2x-y=1$$ or else rewrite as earthcitizen wrote as 
$$y=2x-1$$ and then replace x by some well chosen numbers and find a couple points

anonymous · Answer

did this help?

anonymous · Answer

yes it di. thankS!