Question

solve the system by graphing.
2x+y=1
2x+y=3

Answer 1

whenever you have the same equation but different outcomes; they are parallel and have no solution

Answer 2

get them into y=mx+b form

Answer 3

y=-2x+1
y=-2x+3

Answer 4

think of it as saying:

sally is 1 year old
sally is 3 years old

there is no real solution to these statements

Answer 5

Right, because they're parallel (they have the same slope), they will never intersect, so there's no solution.