Question

Parallelogram JKLM has coordinates J (−8, 16), K (8, 16), L (16, −8), and M (0, −8). Parallelogram JꞌKꞌLꞌMꞌ has coordinates Jꞌ (−1, 2), Kꞌ (1, 2), Lꞌ (2, −1), and Mꞌ (0, −1). Parallelogram JꞌꞌKꞌꞌLꞌꞌMꞌꞌ has coordinates Jꞌꞌ (3, 2), Kꞌꞌ (5, 2), Lꞌꞌ (6, −1), and Mꞌꞌ (4, −1).

Which transformations describe why parallelograms JKLM and JꞌꞌKꞌꞌLꞌꞌMꞌꞌ are similar?



A.
Parallelogram JKLM was reflected across the y-axis and then dilated by a scale factor of .

B.
Parallelogram JKLM was dilated by a scale factor of and then translated 1 unit right and 2 units down.

Answer 1

C.
Parallelogram JKLM was rotated 270° clockwise and then dilated by a scale factor of .

D.
Parallelogram JKLM was dilated by a scale factor of and then translated 4 units to the right.

Answer 2

Can you tell what is the transformation below?
J (−8, 16), K (8, 16)
Jꞌ (−1, 2), Kꞌ (1, 2)

Answer 3

no :P

Answer 4

See if you can find a rule to from J-> J' and from K -> K'.

Answer 5

Did you notice that when the coordinates of J and K are divided by 8, you get the coordinates of J' and K'?
What do you call that transformation?