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1.question Use an ordered pair to describe the translation that is 7 units to the left and 1 units down.2. questionWhat is the image of (2,-3) after a 270 degree counterclockwise rotation about the origin?

1 Answer

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When rotating a point 270 degrees counterclockwise about the origin,

a point (x,y) becomes (y,-x).

This means, we switch x and y and negate x.

The point to rotate 270 degrees counterclockwise is (2, -3). According to the rule, it will becomes:

(-3,-2)

From the answer choices, it is C

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A translation is horizontal direction and vertical direction is given by the ordered pair:

Where

x is the horizontal translation (negative if left, positive if right)

y is the vertical translation (negative if down, positive if up)

So, a translation of 7 unit left and 1 unit down in going to be:

<-7, -1>

From the answer choices, it is D

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