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Mathematics 21 Online
OpenStudy (anonymous):

The vertices of a triangle are P(4, 1), Q(2, –8), and R(-8, 1). What are the vertices of the image reflected across the y-axis? Help :(

OpenStudy (anonymous):

uhm

OpenStudy (anonymous):

okay, llemme do it on paper

OpenStudy (anonymous):

i think the x's in each ordered pair just switches the sigh (pos to neg, vice versa)

OpenStudy (anonymous):

y just stays the same

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