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題目

解題步驟

1. Understand the question

   if a figure is rotated 90 degrees clockwise, what happens to a point at (3,2)?
   a. it moves to (-2,3).
   b. it moves to (2,-3).
   c. it moves to (-3,2).
   d. it moves to (3,-2).

2. Explanation

   Step1: Recall 90° clockwise rotation rule

   For a point $(x,y)$, 90° clockwise rotation about the origin transforms it to $(y, -x)$.

   Step2: Substitute $(3,2)$ into the rule

   Substitute $x=3$, $y=2$: $(2, -3)$

3. Final answer

   b. It moves to (2,−3).

答案

Question Analysis

OCR Text

if a figure is rotated 90 degrees clockwise, what happens to a point at (3,2)?
a. it moves to (-2,3).
b. it moves to (2,-3).
c. it moves to (-3,2).
d. it moves to (3,-2).

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