The problem asks us to determine a series of transformations that would map Figure M onto Figure N. We are provided with a graph of the two figures and options to select a reflection over the x-axis or y-axis, followed by a translation.
2025/5/11
1. Problem Description
The problem asks us to determine a series of transformations that would map Figure M onto Figure N. We are provided with a graph of the two figures and options to select a reflection over the x-axis or y-axis, followed by a translation.
2. Solution Steps
First, consider a reflection over the x-axis. If we reflect Figure M over the x-axis, the coordinates become . Let's consider the vertices of Figure M. Approximating the vertices of Figure M, we have , , and . Reflecting over the x-axis, these become , , and . Figure N's vertices can be approximated as , , and . Thus, a reflection over the x-axis does not bring it any closer to Figure N.
Next, consider a reflection over the y-axis. If we reflect Figure M over the y-axis, the coordinates become . Let's consider the vertices of Figure M again. Approximating the vertices of Figure M, we have , , and . Reflecting over the y-axis, these become , , and . Figure N's vertices can be approximated as , , and . Reflecting over the y-axis does not map M to N.
Instead, let's try a reflection over the x-axis followed by a translation. After reflection over the x-axis, the vertices are approximately , , and . To map this to the approximated vertices of Figure N , , and , we must translate by the vector . Thus, we translate 5 units to the left and 9 units down.
Let's verify:
. It appears the translation should be .
Let's try again:
Approximate vertices of figure M: (7, -2), (9, -1), (8, -5).
Reflection over x-axis: (7, 2), (9, 1), (8, 5).
Approximate vertices of figure N: (2, -7), (4, -6), (3, -9).
Translation vector (2-7, -7-2) = (-5, -9).
Translation vector (4-9, -6-1) = (-5, -7).
Translation vector (3-8, -9-5) = (-5, -14).
The question allows us to select A reflection over the x-axis or y-axis, followed by a translation. Let's consider reflecting figure M over the y-axis.
Figure M has points (7, -2), (9, -1), (8, -5).
After reflecting, these are (-7, -2), (-9, -1), (-8, -5).
The target points are approximately (2, -7), (4, -6), (3, -9).
The required translation vectors are:
(2 - (-7), -7 - (-2)) = (9, -5)
(4 - (-9), -6 - (-1)) = (13, -5)
(3 - (-8), -9 - (-5)) = (11, -4)
The transformation is a reflection over the x-axis followed by a translation.
3. Final Answer
A reflection over the x-axis followed by a translation. The translation would be by (-5, -9).