Question

I need help, I still have to study for other tests and it's already 11'o clock

Answer 1

decide whether the part of the waveform that is below the x - axis is a glide reflection of the part that is above. if it is, write the translation using a vector in component form

https://watertowngeometry.wikispaces.com/file/view/7_5+Assignment.pdf

go to the top of page 5 thos are the four problems i'm doing

Answer 2

those*

Answer 3

if you look at #14, you'll see that you can shift the top part above the x axis til the top squares line up with the bottom squares

then you can reflect those top squares over the x axis to get them to match up with the bottom squares

so this shows you that #14 has a glide reflection

Answer 4

ok so we know for sure that this is one but what about the rest are those all no glide reflections?

Answer 5

which of the others are glide reflections?

which of the others are not glide reflections?

Answer 6

i think number 12 is it is equal on both sides of the x - axis and think 15 is to but 13 isn't

Answer 7

12 and 15 are glide reflections

13 is not

all are correct

Answer 8

awesome alright my next problem is that it says that if it is i need to write a translation using a vector in component for. i looked up what a vector means but what is it and what is it in component form?

Answer 9

component form is (x,y) or <x,y>

Answer 10

ex:

<2,3> means you shift to the right 2, and up 3

Answer 11

so then #12 is to the right 4 and down 4 and reflect right?

Answer 12

no

Answer 13

you need to shift the top then reflect over the x axis to get it to match up with the bottom

Answer 14

ok then 4 to the right and reflect?

Answer 15

how are you getting 4?

Answer 16

well then what would it be like 0.7~9

Answer 17

I count 2 spaces over (or 2 units)

so whatever that converts to on the x scale given is the translation you want

Answer 18

see how I'm getting 2 ?

Answer 19

no

Answer 20

focus on the top squares above the x axis in #14

Answer 21

if you slide them over 2 spots to get them to line up above the bottom squares

Answer 22

oh lol i was talking about #12 sorry

Answer 23

so it would be (2,0)? right

Answer 24

well you have to change that 2 to whatever 2 units corresponds to

Answer 25

notice how the x scale starts at x = 0 and goes to x = 0.1

Answer 26

so 2 units doesn't correspond to 2

if the x scale had each tick mark at a whole number, then it would work

Answer 27

right i have to figure that out so 0.05

Answer 28

what's the distance from 0 to 0.1

Answer 29

10 units

Answer 30

no

Answer 31

you're not counting the edges them being rounded makes it more confusing

Answer 32

what do you mean?

Answer 33

the edges are rounded on the graph and i think how the numbers are placed you are counting them before the tick marks they are supposedly set at

Answer 34

yeah you don't count the starting tick mark, but the answer isn't 10

Answer 35

i thought that 0.0 is the origin in this case right?

Answer 36

0.0 isn't the same as (0,0)

Answer 37

the 0.0 you're looking at refers to x = 0.0 or x = 0

Answer 38

i thought it was cause on any graph it is the start right?

Answer 39

yes they all start at x = 0

Answer 40

and this one ends on 0.10 or 0.1

Answer 41

yes that's what you need to watch out for

Answer 42

so then the vector or whatever would be (0.05,0)

Answer 43

close, but no

Answer 44

then would it be (0.045,0)

Answer 45

each tick mark represents 0.1/8 = ???

Answer 46

0.0125?

Answer 47

right?

Answer 48

good, so 2 of those tick marks represent how many units?

Answer 49

0.025

Answer 50

yep

Answer 51

so the translation vector is <0.025, 0>

then you reflect over the x axis

Answer 52

oh ok

Answer 53

so then 15 would be (0.025,0) then reflect across the x

Answer 54

and 12 would be (0.05,0) reflect across the x

Answer 55

am i right?

Answer 56

both are correct

Answer 57

OMG FINALLY I have had this question posted since 6 eastern time and finally it's answered

Answer 58

glad to be of help

Answer 59

well hopefully i will have you help in future posts thanks

Answer 60

so did u ever get wat u need to

Answer 61

yeah

Answer 62

oh than close it

Answer 63

u herd me didnt u

Answer 64

jezz calm down dude i will

Answer 65

ok well im not jezz now lay off by the way im am girl

Answer 66

i call everyone dude

Answer 67

oh ok i see do u need help on any other questions

Answer 68

ill help

Answer 69

wat grade r u in

Answer 70

nope i just have to study for a spanish test and finish reading a summer reading book but thank you, i'm in 10th grade

Answer 71

ok kool me 7 th but me a straight a student can u help me on my questions

Answer 72

sure

Answer 73

ok well it has to be some where at the bottom

Answer 74

k

Answer 75

kk