The equation of the line that passes through the point (1,2) is y = 2x – 1with slope 1.
Using the point-slope form of the equation of a line, we can write the equation of a line that passes through the point (1,2) as:
y - 2 = m(x - 1)
Since the slope of the line is m, we can set m = 1 and solve for y:
y - 2 = 1(x - 1)
y - 2 = x - 1
y = x - 1 + 2
y = 2x – 1
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