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The line is shifted up by two units.

The equation of a line can be given as follows: y = mx + b, where the values of x and y are coordinates falling somewhere along the line (respectively the "abscissa" and "ordinate" of the ordered pair, if memory serves), m is the slope of the line (a line with no slope, i.e. m=0, is horizontal, since the equation for any line with zero slope will return a value of 0 for any given y), and b is the "y-intercept", i.e. the point where the line crosses the y-axis (thus, to find the y-intercept of a line, assign y a value of 0 and solve for b).

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13y ago

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