Question

REALLY NEED SOMEONE TO HELP ME!!!! Which sequence of transformations was performed on figure PQRS to produce figure PꞌꞌQꞌꞌRꞌꞌSꞌꞌ?





A.


PQRS was reflected across the y-axis and then rotated 90° counterclockwise about the origin.


B.


PQRS was reflected across the x-axis and then rotated 90° counterclockwise about the origin.


C.


PQRS was translated 5 units left and then reflected across the x-axis.


D.


PQRS was rotated 180° clockwise around the origin and then translated 1 unit left.

Answer 1

http://static.k12.com/calms_media/media/1574000_1574500/1574347/1/143ee00b309f8fe793af27f025a0ac8f65b4f77e/MS_IMC-141231-111319.jpg

Answer 2

@brucebaner @Destinymasha @Phebe @pooja195 @sleepyjess

Answer 3

i reallllllllllllly need help

Answer 4

@Nnesha ? any ideas?

Answer 5

hm not sure..

Answer 6

to me, like none work

Answer 7

do you know the definition of 90 counterclockwise and 180 , 90 clockwise ?

Answer 8

uhm i think so

Answer 9

90 counterclockwise
\[\large\rm (x,y) ----> (-y,x)\]
90 clockwise \[\large\rm (x,y)----->(y,-x)\]

180 clockwise \[\large\rm (x,y)---->(-x,-y)\]

Answer 10

okay yeah thats what i thought

Answer 11

sooooo not D?

Answer 12

thinking

Answer 13

because p=1,2 and p"=-2,-1

Answer 14

gimme a sec i mean 5 mint

Answer 15

okay

Answer 16

i really dont think its C so im guessing A or B

Answer 17

yah i guess i'm working 'n it

Answer 18

Im thinking A, hbu?

Answer 19

1 mint :3

Answer 20

it was A, thanks for explaining the 90' and 180" things for me =D your a lifesaver!!!

Answer 21

yea you are right
sorry for late i was did something wrong
and here is an explanation
for A so first we have to rotate across the y -axis
to do that we have to y -coordinate stays same like in original image
and change the sign of x coordinate
so in the original image
P (1,2)
Q(3,1)
R(3,3)
S(1,4)
rotate over y-axis
like i said y values stay same change sign of x coordinate
P(-1,2)
Q(-3,1)
R(-3,3)
S(-1,4)
now we have to use those definitions