Question

determine weather the graphs of the pair of lines are parallel or undefined

x+10=y
y-x=-6

so x+10=y is? or is it undefined
so y-x=-6 is? or is it undefined

Answer 1

parrallel

Answer 2

first one has slope 1. second one does as well

Answer 3

easy way to tell is solve for y. first one is already solved for y since you have
\[y=x+10\]
second one is
\[y=x-6\] so slope is 1 in both cases