Find the Equation of a Line Given That You Know a Point on the Line And Its Slope. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept. If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line.Substitute these values in [1] we have; Therefore, is the point slope form of a line with slope 4/5 that contains the points (-2,1)Given : A line with slope 3 that contains the point (2, 1). To find : What is the point-slope form of a line . By the point-slope formula: which states that given a point and a slope m, the equation of the line can be written as y - = m(x - ). Therefore, Equation A. y - 1 = 3(x - 2).
