![]() ![]() Follow the link below to see how this works. The calculator uses a statistics feature called a "Linear Regression" to give you the slope and y-intercept of y = ax + b (the calculator's version of y = mx + b). While the graphing calculator can be helpful in working with any of the methods shown above, the calculator can also create the equation of a line given two points on the line. Graphs of vertical lines are never "functions" because the x-value corresponds to an infinite number of y-values. The point (1,2) is not needed (it is a distractor). It will help you to find the coefficients of slope and y-intercept, as well as the x-intercept, using the slope intercept formulas. Solution: All vertical lines have no slope (or undefined slope). The slope intercept form calculator will teach you how to find the equation of a line from any two points that this line passes through. If you can picture that plotting these two points will create a vertical line, your work is easy.įind the slope of a vertical line passing through (1,2). Solution: There are several ways to attack this problem. This equation describes what is happening to all of the x-coordinates (all x-coordinates are -3).įind the equation of a line passing through the points (7,4) and (7,-2).Vertical line formulas never contain a y-value.The rise/run formula always has a denominator of zero, making all of the ratios undefined. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Explore math with our beautiful, free online graphing calculator. ![]() ![]()
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