Absolute Value Equation Solver — |ax + b| = c (Free)
Free absolute value equation solver: solve |ax + b| = c for both solutions, with the two cases worked out and the no-solution case handled.
Function Grapher — Plot y = f(x) Online (Free)
Free online function grapher: type any function like x^2-3 or sin(x) and see it plotted on a coordinate grid, with a second function and a custom x-range supported.
