You start at (2,4) you move right 7 units where do u end

Move to the right by 7 unit means adding 7 to the x coordinate.
Let,
[tex]\begin{gathered} (x,y)=(2,4) \\ (x+7,y)=(2+7,4) \\ =(9,4) \end{gathered}[/tex]Thus on moving to the right by 7 unit we end up at (9,4).