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## #1 2017-08-15 11:05:20

DarkTangent
Member
Registered: 2017-07-03
Posts: 20

### Geometry-Transformations

has vertices with coordinates
and
. When the figure is rotated clockwise
around point
and then reflected across the line
, what are the coordinates of the final image of point
? Express your answer as an ordered pair.

I am stuck and don't know where to begin. Please help!

Thanks,

DarkTangent

All our dreams can come true if we have the courage to pursue them - Walt Disney

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## #2 2017-08-15 19:11:32

bob bundy
Registered: 2010-06-20
Posts: 8,137

### Re: Geometry-Transformations

hi DarkTangent

First draw a diagram.  Then make use of some tracing paper.  In the UK in GCSE exams, tracing paper is allowed.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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## #3 2017-08-15 21:02:24

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Geometry-Transformations

Last edited by thickhead (2017-08-15 21:36:15)

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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## #4 2017-08-16 13:01:37

DarkTangent
Member
Registered: 2017-07-03
Posts: 20

### Re: Geometry-Transformations

That answer is not correct. The method looked right though.

All our dreams can come true if we have the courage to pursue them - Walt Disney

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## #5 2017-08-16 19:43:42

bob bundy
Registered: 2010-06-20
Posts: 8,137

### Re: Geometry-Transformations

hi Dark Tangent

I get this:

Q (2,7) rotates to Q' ((0,5) and then reflects to (2,5)

So the coordinates of  various points will be  N(0,-4)  ,P( 2,-4)  and Q(2,0).

Is this correct?  The rotation is 270 clockwise.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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## #6 2017-08-17 03:40:24

DarkTangent
Member
Registered: 2017-07-03
Posts: 20

### Re: Geometry-Transformations

Yes! Thanks so much for your help!

All our dreams can come true if we have the courage to pursue them - Walt Disney

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## #7 2017-08-17 07:01:44

DarkTangent
Member
Registered: 2017-07-03
Posts: 20

### Re: Geometry-Transformations

Can you please also help me with this problem too?

Segment

has endpoints at
and
. Segment
is obtained by translating
by
units to the right and
units down. Find the midpoint of segment
with
and
integers.

All our dreams can come true if we have the courage to pursue them - Walt Disney

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## #8 2017-08-17 07:09:31

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,107
Website

### Re: Geometry-Transformations

You can either find the midpoint of
and perform the translation, or translate
and then determine the midpoint.

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## #9 2017-08-21 04:59:30

Member
Registered: 2016-04-16
Posts: 1,086

### Re: Geometry-Transformations

I overlooked "clockwise". My answer is for counterclockwise 270 degrees rotation.

{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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