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PLEASE HELP!!!!!
If polygon MAST with coordinates M(-3,-1), A(-3,2),S (-1,3) and t (1,1) is reflected across x=-3, then which of the following coordinates represent the vertices of the polygon MAN'S'? select all that apply
PLEASE HELP!!!!!

(-3,-1)

(-7,1)

(-3,2)

(1,1)

(-1,3)

(3,-1)

(-5,3)

Respuesta :

kudzordzifrancis

Answer:

The correct choices are (-3,-1), (-3,2), (-5,3) and (-7,1)

Step-by-step explanation:

Given that MAST with coordinates M(-3,-1), A(-3,2),S (-1,3) and T(1,1).

The mapping for reflection across the line [tex]x=k[/tex] is

[tex](x,y)\to (2k-x,y)[/tex]

The coordinates of M'A'S'T'.

M'(2(-3)--3,-1), A'(2(-3)--3,2),S' (2(-3)--1,3) and T'(2(-3)-1,1)

M'(-6+3,-1), A'(-6+3,2),S' (-6+1,3) and T'(-6-1,1)

M'(-3,-1), A'(-3,2),S' (-5,3) and T'(-7,1)

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