Question 469941
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Hi
To find the equation of a line, all you need is a point and a slope: True
"as long as the point given is on the line."

Using point-slope formula, {{{y - y[1] = m(x - x[1])}}}, equation of the line
 to find the equation of a line with slope m and {{{P(x[1],y[1])}}} on the line.
Let say m = 2 and  Pt( 2,3) is on the line
  y - 3 = 2(x-2)  OR y = 2x -1