Question

If pentagon ABCDE is rotated 180° around the origin to create pentagon A’B’C’D’E’, what is the ordered pair of point A’?

(2, -4)

(-4, -2)

(-2, -4)

(4, 2)

Answer 1

Any point (x,y) that is rotated 180 degrees about the origin will turn into (-x,-y)

Ex: (1,5) rotates 180 degrees about the origin to (-1,-5)

Answer 2

this is like.... 6th grade math

Answer 3

sorry im homeschool and i dont get geometry

Answer 4

Does what I said above make sense?

Answer 5

ya im trying to figure it out thank u though that i wrote a min ago wasnt to u it was for the other person

Answer 6

i wasnt trying to be rude to anyone sorry if it sounded like i was

Answer 7

You're fine, you weren't ever rude to me

Answer 8

as for the other person, not sure how they interpreted it but I'm sure they probably see it as the same (who knows though)

Answer 9

lol so would it be 4,2 idk what way to turn it

Answer 10

Remember (x,y) goes to (-x,-y)

Answer 11

so what is (x,y)?

Answer 12

-2,-4

Answer 13

close, it's (-2,4)

Answer 14

the y coordinate is positive since you're above the x-axis

Answer 15

so what is (-x,-y)?

Answer 16

ohh okay i get it so i change the x to a -x

Answer 17

yes

Answer 18

if (x,y) = (-2,4), then (-x,-y) = ???

Answer 19

2,-4

Answer 20

you nailed it

Answer 21

ya thank u soo much u make snese more than other ppl do

Answer 22

don't forget to surround that in parenthesis, but you have it nonetheless

Answer 23

I'm glad I could help you out

Answer 24

i will thank u sooo much

Answer 25

you're welcome