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Mathematics 21 Online
OpenStudy (anonymous):

Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'? (what does x=3 mean?) A. (–4, –1) B. (–4, 8) C. (–1, 2) D. (10, 2)

OpenStudy (anonymous):

x=3 is the line that A is reflected over

OpenStudy (anonymous):

Do I add three?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

I'm so confused

OpenStudy (anonymous):

im drawling it hold on

OpenStudy (usukidoll):

x=3 is a vertical line and you draw that line at (3,0)

OpenStudy (anonymous):

OpenStudy (anonymous):

@jillina29

OpenStudy (anonymous):

Ahh I don't get it

OpenStudy (anonymous):

u see the line?

OpenStudy (anonymous):

noo i only see the dots

OpenStudy (anonymous):

the red line

OpenStudy (anonymous):

oooh yes I see the red line

OpenStudy (anonymous):

see how its on 3 and its not touching the y axis

OpenStudy (anonymous):

ohh yes

OpenStudy (anonymous):

that x=3

OpenStudy (usukidoll):

@Skielerlucas04 right... and desmos is an awesome graphing website :)

OpenStudy (usukidoll):

so after x = 3 and the point (-4,2) is drawn we can reflect that point over the vertical line. we should have (10,2)

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