Question

An artist designed a badge for a school club. Figure ABCD on the coordinate grid below shows the shape of the badge.

http://tinypic.com/r/96f3eo/6

The badge is enlarged and plotted on the coordinate grid as Figure JKLM with point J located at (-4, -7) and point M located at (-2, -3).

Which of these could be the possible coordinates for vertex L?

(-1, -7)
(3, -7)
(0, -3)
(2, -3)

Answer 1

I think it's 3, -7

Answer 2

(0,-3) is the answer.

Answer 3

how do you know?

Answer 4

wait, i got it. you're right! :)

Answer 5

Well the second enlarged diagram is twice as big as the first one.The length of AD=sqrt(5) and JM=2*sqrt(5). So the sides are in the ratio of 1:2.So ML will be twice as long as DC.