Solving equations by graphing | Algebra 2 | Khan academy
18Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:eq/x2ec2f6f830c9fb89:sol-eq-graph/v/graphical-equations-intro
You probably already solved a system of equations by graphing the equations and looking for intersection points. This method can actually be used to solve (or find an approximate solution to) any single equation, no matter what kind! This is a very exciting tool.
View more lessons or practice this subject at https://www.khanacademy.org/v/equations-by-graphing
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