Consider the following equations: −x − y = 1
y = x + 3 If the two equations are graphed, at what point do the lines representing the two equations intersect?
( -1, 2)
( -2 , 1)
( 1 , -2)
( 2, -1)
solve for X and y using both equations the point you get will be the point they cross eachother -x-y=1 y=x+3 -x-(x+3)=1 -x-x-3=1 -2x-3=1 +3 both sides -2x=4 ÷-2 both sides x=-2 solve for y y=-2+3 y=1 (-2,1)
