Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

Pentagon ABCDE and pentagon A'B'C'D'E' are shown on the coordinate plane below. Which two transformations are applied to pentagon ABCDE to create A'B'C'D'E'? translated according to the rule (x, y) → (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) → (x + 2, y + 8) and reflected across the axis translated according to the rule (x, y) → (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) → (x + 8, y + 2) and reflected across the axis

OpenStudy (anonymous):

OpenStudy (anonymous):

some things are missing in your choices...

OpenStudy (anonymous):

like what ? the is exactly what the question says

OpenStudy (anonymous):

for example, that last choice says "reflected across the axis" ... what axis?

OpenStudy (anonymous):

that is the same question i had . but im not sure thats what the questions says though :/

OpenStudy (anonymous):

doesn't really matter though... the one's that are missing info is not any of those..

OpenStudy (anonymous):

okay. So can you help me solve for it now?

OpenStudy (anonymous):

best way to do this is to try do "undo" the transformations...

OpenStudy (anonymous):

try reflecting the image over the y-axis first...

OpenStudy (anonymous):

then see what kind of translation will get you from there to the actual pre-image.

OpenStudy (anonymous):

did you understand what i just stated?

OpenStudy (anonymous):

yes kind of ..

OpenStudy (anonymous):

because i cant undo the transformations so i just looked at the other axis i noticed that it moved and the points changed

OpenStudy (anonymous):

start from the image (the final picture, the one's with prime notations) and pick a point like D'.... can you give me the coordinates of D'...

OpenStudy (anonymous):

D is 1, -3

OpenStudy (anonymous):

no, i want D'

OpenStudy (anonymous):

8, 4?

OpenStudy (anonymous):

just look at the graph... what are the coordinates of D'

OpenStudy (anonymous):

D' is 1, 3

OpenStudy (anonymous):

yes... now reflect that over the y-axis... what's the coordinates now?

OpenStudy (anonymous):

|dw:1341603213974:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!