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Mathematics 12 Online
OpenStudy (shaleiah):

@jabez177

OpenStudy (shaleiah):

OpenStudy (shaleiah):

x would be the opposite sign?

OpenStudy (shaleiah):

p (5,-2)

jabez177 (jabez177):

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite. The reflection of the point (x, y) across the y-axis is the point (-x, y). When you reflect a point across the line y = x, the x-coordinate and the y-coordinate change places. http://www.regentsprep.org/regents/math/geometry/gt1/reflect.htm

jabez177 (jabez177):

This is a good example. |dw:1457987531046:dw|

jabez177 (jabez177):

Can you try and figure out the answer now? :)

OpenStudy (shaleiah):

Yes, d :)

jabez177 (jabez177):

Emmmm... Nope.

jabez177 (jabez177):

(-5, -2) will become (5, -2)

OpenStudy (shaleiah):

Alright, makes sense.

jabez177 (jabez177):

Because you're reflecting it across the y-axis.

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