Question

Triangle J′K′L′ shown on the grid below is a dilation of triangle JKL using the origin as the center of dilation:

Two triangles are drawn on a grid. First triangle has vertices J 8 and 12, K 4 and 8, L 12 and 6. Image triangle has vertices J prime 4 and 6, K prime 2 and 4, L prime 6 and 3.


Which scale factor was used to create triangle J′K′L′?

4
1/4
2
one half

Answer 1

there go everything for that question

Answer 2

can anybody help??

Answer 3

hello????

Answer 4

Any ideas on where to start?

Answer 5

i dont know how to solve it

Answer 6

i didnt get taught this

Answer 7

Do you know how to label the points at least?

For example the big triangle, what is the coordinates for point J

Answer 8

yes

Answer 9

8,12

Answer 10

Good! Now what about that smaller triangle. What is point J'

Answer 11

4,6

Answer 12

Good!

So we went from (8,12) to (4,6)

What do you have to do to 8 to make it 4?
What number do you multiply or divide by?

Similarly, what do you do to 12 to make it 6?
What number do you multiply or divide by?

Answer 13

2

Answer 14

Good!

So we have to divide by 2

What's another way to show dividing by 2 but as multiplication

(You can peek at your answer choices if you need help)
But what

8 * ?? = 4
12 * ?? = 6

Answer 15

the answer is 2

Answer 16

no no

Answer 17

If the answer was 2 then that means the new triangle is BIGGER

but the new triangle is smaller

Answer 18

ohhhhhhhh

Answer 19

1/2

Answer 20

The new triangle is the one that has the \( '\) after the letters

Answer 21

Exactly! That's your answer :)

Answer 22

can you help me with another one

Answer 23

Dividing a number by 2 is the same thing as multiply it by 1/2

Answer 24

Sure! Make a new post and you can tag me :)