Question

Alfred graphed two lines, y = x + 4 and y = x - 2. How would this be graphed?

Answer 1

you could just plot two points for each line
first one
let x = 0 then y = 0+ 4 = 4 point(0,4)
let x = 4 then y = 4+ 4 = 8 point (4,8)

draw a straight line between the two points

do similar procedure on second line