Respuesta :
Answer:
L'(-7, -7), M'(-9, 9), and N'(5, 5)
Step-by-step explanation:
Assuming you mean 90° counterclockwise, you would use the formula: A(x,y) becomes A'(-y,x)
so L'(-7, -7), M'(-9, 9), and N'(5, 5)
The question was incomplete. Please check below the full content.
Which of the following represents a rotation of ΔLMN. which has vertices L (-7,7), M (9,9), and N(5, -5) about the origin by 90°?
a) L(-7, -7) M(-9. -9) N(5, 5)
b) L(-7. -7) M(-9. 9) N(5, 5)
c) L(-7, -7) M(-9, 9) N(5, -5)
d) L (7, -7) M(9, 9) N(-5, 5)
The rotation of the vertices L (-7,7), M (9,9), and N(5, -5) are
L'(-7,-7), M'(-9,9) and N'(5,-5) respectively.
Rotation of a point :
- The rotation of a point (x,y) about the origin by 90° is (-y,x).
- Given vertices of ΔLMN are L(-7,7), M(9,9), and N(5, -5)
Let the rotations of L, M, and N are L', M', and N' respectively.
- The rotation of a point L(-7,7) about the origin by 90° is (-7,-7).
- The rotation of a point L(9,9) about the origin by 90° is (-9,9).
- The rotation of a point L(5,-5) about the origin by 90° is (5,-5).
Hence L'(-7,-7), M'(-9,9), and N'(5,-5) are the rotation of vertices
L, M, and N of ΔLMN about the origin by 90°.
To know more about the rotation of a point:
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