Solve the system of equations by graphing
3x + 2y = -2
-4x + 5y = -28

Question

Solve the system of equations by graphing
3x + 2y = -2
-4x + 5y = -28

anonymous · Answer

Do you have a graphing calculator or other utilities?

anonymous · Answer

Or do they want you to actually draw it. (Either way should be fine)

geometry_hater · Answer

You need to graph it and then look for a point of its intersection

anonymous · Answer

Unfortunately I do not have a graphing calculator.

geometry_hater · Answer

You can download one onto your computer

anonymous · Answer

I would just use wolframalpha. The way these equations work out, there's no way you'd get an accurate answer on pencil/paper.

geometry_hater · Answer

geometry_hater · Answer

So to start you need to get y by itself in both equations

anonymous · Answer

anonymous · Answer

If you were using a TI calculator or some similar, you would have to isolate y.

anonymous · Answer

How do I isolate y?

anonymous · Answer

Get y by itself in both equations.

geometry_hater · Answer

3x + 2y = -2

Subtract 3x  ......2y = -3x -2
Divide by 2........ y= -3/2x - 1 

Do the same for the other one

anonymous · Answer

Oh okay. Let me work that out.