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List the coordinates coordinates of vertices of trapezoid ABCD after it has been rotated 90 Counterclockwise bout the origin and then reflected over the x-axis. A(-5,-3) B(-4,0),c(-2,0),D(O,-3)

List The Coordinates Coordinates Of Vertices Of Trapezoid ABCD After It Has Been Rotated 90 Counterclockwise Bout The Origin And Then Reflected Over The Xaxis A class=

Sagot :

Answer:

The coordinates of the final image is;

[tex]A^{\prime\prime}(3,5),B^{\prime\prime}(0,4),C^{\prime}^{\prime}(0,2),D^{\prime}^{\prime}(3,0)[/tex]

Explanation:

From the question, the pre-image was been rotated 90 Counterclockwise bout the origin.

Which has a rule;

[tex](x,y)\rightarrow(-y,x)[/tex]

Applying the rule to the given points. we have;

[tex]\begin{gathered} A(-5,-3)\rightarrow A^{\prime}(3,-5) \\ B(-4,0)\rightarrow B^{\prime}(0,-4) \\ C(-2,0)\rightarrow C^{\prime}(0,-2) \\ D(0,-3)\rightarrow D^{\prime}(3,0) \end{gathered}[/tex]

Then the produced image was then reflected over the x-axis;

Reflection across the x-axis have the rule;

[tex](x,y)\rightarrow(x,-y)[/tex]

Applying the rule to the resulting image;

[tex]\begin{gathered} A^{\prime}(3,-5)\rightarrow A^{\prime^{}}^{\prime}(3,5) \\ B^{\prime}(0,-4)\rightarrow B^{\prime}^{\prime}(0,4) \\ C^{\prime}(0,-2)\rightarrow C^{\prime^{}}^{\prime}(0,2) \\ D^{\prime}(3,0)\rightarrow D^{\prime}^{\prime}(3,0) \end{gathered}[/tex]

Therefore, the coordinates of the final image is;

[tex]A^{\prime\prime}(3,5),B^{\prime\prime}(0,4),C^{\prime}^{\prime}(0,2),D^{\prime}^{\prime}(3,0)[/tex]