Philip P. answered 04/26/15
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x - 2y - 1 = 0
x - 2y = 1
The x-intercept occurs when y = 0:
x - 2(0) = 1
x = 1
The x-intercept is at the point (1,0)
The y-intercept occurs when x = 0:
0 - 2y = 1
y = -1/2
The y-intercept is at the point (0,-1/2)