Question

Point B has coordinate B(1, –1). What is the coordinate of B' under a scale factor of 3?

Answer 1

Answer:

The coordinate B' is $B' = (3, -3)$.

Step-by-step explanation:

The new coordinate is computed by applying the scale factor with respect to origin:

$B' = \alpha \cdot B$

$B' = 3\cdot (1,-1)$

$B' = (3\cdot 1, 3 \cdot (-1))$

$B' = (3, -3)$