What are the coordinates of the image of D if it is reflected across the x-axis?
https://media.glynlyon.com/g_pal_2011/7/img_coordinate_plane_quiza1_reflection_point.gif

I just need help with what it exactly means by across, it means to the right...or does it mean up?

Question

What are the coordinates of the image of D if it is reflected across the x-axis?
https://media.glynlyon.com/g_pal_2011/7/img_coordinate_plane_quiza1_reflection_point.gif

I just need help with what it exactly means by across, it means to the right...or does it mean up?

ivettef365 · Answer

coordinates are the points,  (x,y), what is x and what is y

anonymous · Answer

x is across and y is up and down

ivettef365 · Answer

right http://www.mathsisfun.com/definitions/coordinates.html

ivettef365 · Answer

so what is the value of x

anonymous · Answer

-3