Question

What are the coordinates of R'after the translation (x, y) → (x+1, y-1),

followed by a dilation by a scale factor of 3, centered at the origin?
O A. (3,12)
OB. (6,4)
O C. (4,14)
O D. (6, 12)
SUBM

Answer 1

Explanation:

for the first translation the x for R is 1, so 1+1 is 2. and the y for R is 5 so 5-1=4 so after the first translation the coordinates turn into (2;4). with a scale faxtor of 3 centered at the origin you have to multiply each coordinate by 3 since the center is at the origin. so R1 will be (6;12)