graphing to solve x - y = -1, y = -3x + 5

[haliebre]

Solve this system by graphing
x-y = -1
y= -3x+5

the answer I am supposed to arrive at is either:
a. (2,1)
b. (-1, -2)
c. (1, 2)
d. (-2,-1)

 

[stapel]

So you've graphed the two lines, and... then what? Where are you stuck?

Please reply with specifics. Thank you.

Eliz.