Question

Triangle PQR with vertices P(3, −6), Q(6, −9), and R(−15, 3) is dilated by a scale factor of 3 to obtain triangle P′Q′R′. Which statement best describes triangle P′Q′R′?

Answer 1

It is similar to triangle PQR and has coordinates P′(1, −2), Q′(2, −3), and R′(−5, 1).
It is congruent to triangle PQR and has coordinates P′(1, −2), Q′(2, −3), and R′(−5, 1).
It is similar to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9).
It is congruent to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9).

Answer 2

I thinks its a or c because if its scaled by 3 it is similar

Answer 3

Well first of all,
dilating means getting bigger or smaller and if it's bigger or smaller is it still congruent?
That can eliminate 2 answers

Answer 4

Oh nvm that then you got it

Answer 5

Lol

Answer 6

Ok so it's really simple when there's a scale factor of 3, just multiply every x and y(of the original triangle) coordinate by 3 and you''ll have your answer

Answer 7

So C!

Answer 8

Yep :)

Answer 9

Thanks so much!

Answer 10

no problem