You need to plug in numbers for x. If I plug in 1 for x in the first box I multiply it by 1/2 to get 0.5 then add 2 for 2.5. So the first x:1 first y:2.5. Then if i repeat the process on x=2 and x=3 I will get the other answers. FIRST ROW: x:1 y:2.5 SECOND ROW: x:2 y:3 THIRD ROW: x:3 y:3.5. If you need to plot them it’s (1,2.5), (2,3) and (3,3.5)
