Answer:
The coordinate B' is [tex]B' = (3, -3)[/tex].
Step-by-step explanation:
The new coordinate is computed by applying the scale factor with respect to origin:
[tex]B' = \alpha \cdot B[/tex]
[tex]B' = 3\cdot (1,-1)[/tex]
[tex]B' = (3\cdot 1, 3 \cdot (-1))[/tex]
[tex]B' = (3, -3)[/tex]
