The line segment cd with endpoints c(5,-7) and (-3,9) is rotated 270 about the origin. What is the coordinate of d?

Answer :

Answer:

[tex]d' = (9,3)[/tex]

Step-by-step explanation:

Given

[tex]c = (5,-7)[/tex]

[tex]d = (-3,9)[/tex]

Transformation: 270 degrees rotation

Required

Determine the coordinates of d

I'll treat the question as: Determine the coordinates of d after the transformation

When a coordinate point d(x,y) is rotated 270 degrees about the origin, the new image of the point is:  d'(y,-x)

In this case: [tex]d = (-3,9)[/tex]

[tex]x = -3[/tex]

[tex]y = 9[/tex]

So, the image of d is:

[tex]d' = (y,-x)[/tex]

[tex]d' = (9,-(-3))[/tex]

[tex]d' = (9,3)[/tex]

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