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Equation of a straight line is: y = mx+c whereas m is the slope and c is the y intercept
Assuming you want the equation of the straight line between the two points (x0, y0) and (x1, y1), the equation is: y - y0 = m(x - x0) where m is the gradient between the two points: m = (y1 - y0) ÷ (x1 - x0) Note: if the two x coordinates are equal, that is x0 = x1, then the equation of the line is x = x0.
Given a straight line with slope m and a point (p,q) on the line, the point-slope formula of the line is (y - q) = m(x - p) It is used to represent a straight line in the Cartesian plane. This allows techniques of algebra to be used in solving problems in geometry.
The x-intercept is equal to -b/m.
The equation for a straight line is y = mx+b whereas m is the slope and b is the y intercept For example: y = 3x+9 which means that 3 is the slope and 9 is the y intercept