
Cari B. answered 10/23/19
Tutor
New to Wyzant
Experienced Math Teacher Specializing in Alg 1 &2, & Geometry
X+Y = 6
change into slope intercept form y=mx+b
y= -x +6
the number infront of X is the slope...so....-1/1 would be your slope
Parallel lines have the same slope, so the answer is -1 or -1/1