Question

Need help with an entire section basically, Will post pics below. What is the image of (1, -6) for a 270° counterclockwise rotation about the origin?

Answer 1

I don't know like this entire part so I was hoping for some help through it

Answer 2

i guess it ll be -6,-1

Answer 3

Can you help me with the rest of this part?

Answer 4

okk sure

Answer 5

A figure has a vertex at (5, 2). If the figure has line symmetry about the x-axis, what are the coordinates of another vertex of the figure?

Answer 6

so the y coordinate will become negative right??

Answer 7

I think so

Answer 8

yepp..so..wat will be the answer?

Answer 9

5,-2?

Answer 10

yepp :)

Answer 11

DEF is a dilation image of ABC. What is the scale factor?

Answer 12

I think it is 1/2 but I'm not sure

Answer 13

are the coordiantes of the vertices given?

Answer 14

Nope, gotta count it out

Answer 15

cool, then jus choose a line and measure its length in both cases..

Answer 16

Its hard since they go diagonally, I can't tell how long one part is

Answer 17

use AB and DE

Answer 18

So my options are 2,1/4,2/3, and 1/2

Answer 19

yepp...dilate..is to widen...DEF is smaller...so its 1/2

Answer 20

Yay, ok next

Answer 21

Point P is reflected across two lines. Point K is its reflection image. Which two lines is point P reflected across?

Answer 22

Don't really get it but this was my guess, x = 3 and y = 2

Answer 23

if its reflected along x= 3, it ll change to 6,0 right?

Answer 24

I guess? I don't really understand it much at all. :p

Answer 25

it is jus like reflection in a pool of water..

Answer 26

Ok, so it changes to 6,0

Answer 27

then how will u get to K? u cant. u hv to choose some other line

Answer 28

so -2?

Answer 29

yes, good and where will the point come now?

Answer 30

-3?

Answer 31

what is -3?

Answer 32

the y

Answer 33

yepp

Answer 34

In the diagram, ECD is a _____ of ABC across line p.

Answer 35

I was thinking glide reflection but the point is weird and my head keeps messing it up lol

Answer 36

hahaa...so it s reflected along p and then turned upwards...idk wat is that called..

Answer 37

translation
rotation
glide reflection
reflection
Those are the options

Answer 38

its none of these, glide reflection is reflection followed by translation

Answer 39

Haha
So they gave me a question I can't answer :l

Answer 40

lol its double reflection, once along p - that is vertically; and then horizontally

Answer 41

A section of a tessellated plane is shown. Which type of symmetry does the tessellated plane have?

reflectional and translational
translational and rotational
lide reflectional
rotational and reflectional
I think its A

Answer 42

yepp correct

Answer 43

the figure is repeated by reflecting and translating

Answer 44

Another one of these I am terrible at :p
What is the reflection image of P(0, 0) after two reflections, first across x = 4 and then across y = -3?

Answer 45

I got 8,6

Answer 46

cool...8 is correct..how did u get 6?

Answer 47

Is it -6 instead?

Answer 48

u tell me?

Answer 49

I think so, just got em confused

Answer 50

yepp, coz y = -3 . its negative,

Answer 51

The figure is reflected across line m and then reflected across line n. What is the resulting transformation?
I didn't understand this one at all.

Answer 52

hahaa

Answer 53

Is it just reflection?

Answer 54

so where do u see ur image with a mirror?

Answer 55

The left

Answer 56

left?

Answer 57

I don't understand what you mean? Do you mean where the star is?

Answer 58

No. I am asking in real life. where do u see ur image with a mirror?

Answer 59

Oh, in front of you

Answer 60

inside the mirror right? or, atleast it appears so

Answer 61

Yeah

Answer 62

so on reflection with m what will happen?

Answer 63

Rotation? Like since it is mirrored

Answer 64

nah. imagine a star instead of yourselves, and a line m instead of the mirror.

Answer 65

Translation?

Answer 66

no, why are you complcating it. if m were a mirror, where will the image of the star will form?

Answer 67

On n

Answer 68

behind n actually

Answer 69

the distance is more

Answer 70

So just reflection? Like a real mirror or glide reflection since it is past it

Answer 71

now it will be reflected by n again , bak towards in ffont of m, but a little shifted as the distance between the star and n is less, so - translation

Answer 72

btw i gtg now, hope i was able to help out..

Answer 73

Thanks man, you really did help alot