Find An Equation For The Line Below

Free line equation calculator - find the equation of a line given two points, a slope, or intercept step-by-step Calculate the equation of a line in standard form, slope-intercept form, or point-slope form. Plus, learn the formulas to express a line.

Use this Equation of a Line Calculator to find the equation of a line (slope, intercept, and linear equation) using two points or a slope and one point. This calculator will find the equation of a line (in the slope-intercept, point-slope, and general forms) given two points or the slope and one point, with steps shown. The line equation from two points calculator allows you to quickly determine the line passing through any given pair of points.

The equation of a straight line is usually written this way: (or y = mx + c in the UK see below). y = how far up. We will now find the entire equation of a line.

Recall from Algebra I that the equation of a line in slope-intercept form is y = m x + b, where m is the slope and b is the y intercept. You can use the calculator below to find the equation of a line from any two points. Just type numbers into the boxes below and the calculator (which has its own page here) will automatically calculate the equation of line in point slope and slope intercept forms.

So far, we have two options for finding an equation of a line: slope-intercept or point-slope. When we start with two points, it makes more sense to use the point-slope form. Examples with detailed solutions on finding the equation of a line from a graph are presented.

Exercises with answers and parallel, perpendicular, horizontal and vertical lines are included.