help please
the vertices of a triangle are A(-1,3) B(2,4) and C(3,0) name the vertices of the image reflected across the x axis

Question

help please
the vertices of a triangle are A(-1,3) B(2,4) and C(3,0) name the vertices of the image reflected across the x axis

jack1 · Answer

|dw:1371058174356:dw|

jack1 · Answer

|dw:1371058285166:dw|

jack1 · Answer

if you reflect across the x axit, each point's x coordinate = the same as before... but each y coordinate becomes a negative y coordinate of the same amount 
ie the point B = (2, 4)
so reflected B would be (2, -4)

anonymous · Answer

Oh okay! and A and C would be the same?

jack1 · Answer

C would be the same... because it's y coordinate is 0, so negative 0 is still 0
reflected A would be...?

anonymous · Answer

it looks the same for A, right?

jack1 · Answer

yeah, but just so we're talking the same language when you say "the same", what are the coordinates of reflected A ...? (   ,    )

anonymous · Answer

A= (-1,3)

jack1 · Answer

no... reflected A would be (-1,  -3)

anonymous · Answer

oh oops lol.

jack1 · Answer

all good

jack1 · Answer

|dw:1371059071207:dw|
in case this explains better than i did

anonymous · Answer

haha oh that helps thank you!