What is the horizontal distance from (-3, 1) to y-axis?

1 Answer
Alan P.
Nov 11, 2016

Horizontal distance to the Y-axis from #(-3,1)# is
#color(green)(-3)# if distances are assumed to be measured to the right; or
#color(green)(3)# if we are only looking at absolute distances.

Explanation:

For a coordinate in the form #(color(red)(x),color(blue)(y))#
#color(white)("XXX")color(red)(x)# is the (horizontal) distance to the right of the Y-axis;
#color(white)("XXX")color(blue)(y)# is the (vertical) distance above the X-axis
[This is a basic definition].

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