Question

http://s9.postimg.org/gonnks673/Capture.jpg

Answer 1

let me know if this helps or not

https://i.ytimg.com/vi/4Q70ZHVFKPc/maxresdefault.jpg

Answer 2

I don't get why it says negative numbers if the chart isn't negative

Answer 3

Example:

Point B is at (1,2)

Using the rule (link I posted), you would swap x and y to get (2,1). Then change the first coordinate to get (-2,1)

So
B = (1,2)
B' = (-2,1)

Answer 4

I don't know why but whenever someone explains something to me my brain doesn't absorb it at all :(

Answer 5

@madisonthedoll do you agree that point B is at (1,2) ?

Answer 6

yes

Answer 7

Reflection over x-axis - (x,y) to (x,-y)
Reflection over y-axis - (x,y) to (-x,y)
Reflection y=x - (x,y) to (y,x)
Rotation 90 degrees counter clockwise (x,y) to (-y,x)

Answer 8

So we swap the coordinates to get (2,1)

with me so far?

Answer 9

yes!

Answer 10

then the last step we do is change the +2 to -2

so that's why (2,1) turns into (-2,1)

Answer 11

Rotation 90 degrees clockwise - (x,y) to (y,-x)
rotation 180 degrees - (x,y) to (-x,-y)

Answer 12

If you rotate (1,2) ninety degrees around the origin then you land on (-2,1)

Answer 13

ninety degrees counter-clockwise

Answer 14

I'm following

Answer 15

Give it a try with the point (3,1)

Answer 16

flip it 90 degreees?

Answer 17

rotate it 90 degrees using the rule I posted above

Answer 18

what rule :D

Answer 19

this one

https://i.ytimg.com/vi/4Q70ZHVFKPc/maxresdefault.jpg

Answer 20

rule:

step 1) swap x and y
step 2) change the sign of the first coordinate

Answer 21

how does one rotate something 90 degrees

Answer 22

let me know if this helps

https://www.youtube.com/watch?v=H-Fr8LLSi_I

Answer 23

@itrymath

Answer 24

Okay, you see where Point B is? Give me the coordinates

Answer 25

Well they are (1,2)

Answer 26

basically all you do is (x,y) --> (-y,x)

Answer 27

ohh

Answer 28

so we literally change the places of them from the orignal point and add a negative to y

Answer 29

so (-2,1)

Answer 30

Simple and you do that with the rest

Answer 31

Can you do "D" for me

Answer 32

I'm having trouble figuring it out lmao

Answer 33

http://s18.postimg.org/y7xobbxq1/Capture.jpg

so this is the answer? why couldn't ppl explain it that way before xD

Answer 34

Yup, looks fine and they try explaining it and they succeed at it but they are like master minds in this stuff im just learning it as well so its easier for me to teach you than a professor SOMETIMES