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Mathematics 10 Online
OpenStudy (anonymous):

URGENT HELP , FAN AND MEDAL WILL BE GIVEN GEOMETRY QUESTION

OpenStudy (anonymous):

Pentagon ABCDE and pentagon A'B'C'D'E' are shown on the coordinate plane below.

OpenStudy (anonymous):

OpenStudy (anonymous):

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 x-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 y-axis translated according to the rule (x, y) →(x + 2, y + 8) and reflected across the x-axis

OpenStudy (anonymous):

@satellite73 Do you know about this?

ganeshie8 (ganeshie8):

lets see how the point "A" is going by the first transformation

ganeshie8 (ganeshie8):

translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the x-axis

ganeshie8 (ganeshie8):

A is at (-4, 5) after applying below transformation : (x,y) -> (x+8, y+2) it moves to : (-4, 5) -> (4, 7)

ganeshie8 (ganeshie8):

next, reflect it across x-axis

OpenStudy (anonymous):

Okay that makes sense

ganeshie8 (ganeshie8):

(4, 7) -> (4, -7)

ganeshie8 (ganeshie8):

look in the given picture. wat are the coordinates of A' ?

OpenStudy (anonymous):

5,7 ?

ganeshie8 (ganeshie8):

A' is indeed at (4, -7) so looks like optionA is the correct answer !

OpenStudy (anonymous):

Oh okay I see where I went Wrong

ganeshie8 (ganeshie8):

good, u can check one more point and conclude

OpenStudy (anonymous):

So this would be it translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the x-axis

ganeshie8 (ganeshie8):

yes optionA is correct

OpenStudy (anonymous):

Thank You :D Can you please help me with a few more on a different question area

ganeshie8 (ganeshie8):

sure :)

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