Oh, dude, the positive direction on the y-axis is like the upward direction. You know, where things go when they're feeling optimistic and want to reach for the stars. So, if you're looking at a graph and you see things going up, that's the positive y-direction. Easy peasy, right?
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the x and y axis in geometry is for graphing a line. the x axis goes horisontially, the positive on the right and the negative on the left. the y axis goes verticialy. the positive on the top, and the negative on the bottom.
up/down
In a Cartesian coordinate system, the plane is divided into four quarters, or regions, by two axis which are vertical to each other. These axis are better known as the X and Y axis. The regions are designated I, II, III, IV starting from the positive, positive region (both values of X and Y are positive) - region I, clockwise. Region II is the region where coordinates are below the X-axis (negative) and right of the Y-axis (positive). Region III is the region where both X and Y values are negative. Region IV is the region where X values are positive and Y values are negative.
Positive x- and y-coordinates of a point in the first quadrant.
Generally the x-axis is displayed on a 2-dimensional Cartesian Coordinate system running horizontally (left to right - for negative to positive values of x) In a 3-D graph, the x-axis is usually shown running diagonally from upper right to lower left (for negative to positive values of x) . In a 3-D graph, the y-axis is the one running horizontally and the z-axis is vertical.