need help if anyone can help explain rlly appreciate it, also will mark brainliest

Co-ordinates of U=(4,5)
Scale factor=3
New co-ordinates
[tex]\\ \sf\longmapsto U""[/tex]
[tex]\\ \sf\longmapsto (4\times 3,5\times 3)[/tex]
[tex]\\ \sf\longmapsto (12,15)[/tex]