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Answer:
- reflection over y = 2.5
- translation left 1
Explanation:
The orientation of the triangle is reversed, so a reflection is required. Horizontal lines remain horizontal, but up/down are reversed, so the reflection is across a horizontal line. The horizontal line that is halfway between each point and its image is the line y = 2.5.
The x-coordinates of the image points are 1 less than the x-coordinates of the original, so a left shift of 1 unit is involved.
The two transformations to get from A to B could be (in any order) ...
- reflection over the line y = 2.5
- translation left 1 unit
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The transformation can be summarized by ...
(x, y) ⇒ (x -1, 5 -y)