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Triangle E'F'G' is the image of triangle EFG after EFG was rotated 180° about the origin, and then translated 11 units to the right. What were the coordinates of point E?

a.(9, -3)
b.(-9, 3)
c.(3,-9)
d.(-3, 9)

User Roy Tang
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1 Answer

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Final answer:

To find the original coordinates of point E, we need to reverse the transformation process: perform an 11-unit translation to the left and then a 180° rotation around the origin on the given coordinates of E'. However, the final coordinates of E' are required to determine the original coordinates of point E.

Step-by-step explanation:

The question involves determining the original coordinates of point E before a 180° rotation around the origin and an 11-unit translation to the right. To find the coordinates of point E, we need to reverse the translation by moving 11 units to the left and then perform a 180° rotation around the origin. If we call the final coordinates of E' (x', y'), then the initial coordinates of E just before the translation would be (x' - 11, y'). To find the coordinates before the rotation, we need to take the negative of both coordinates due to the 180° rotation property, resulting in (-(x' - 11), -y'). If E' is at the coordinates after the transformations, to find E, we apply the reverse transformations. Therefore, the correct answer cannot be determined without knowing the final coordinates of the point E'.

User Andurit
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