Frequently asked questions
How do I find where two graphs meet?
Enter both functions. Intersection points are listed under the graph and marked on it.
Other calculators
Calc SolverCalc Solver solves arithmetic, algebra, equations, derivatives, integrals and limits with clear step-by-step workingScientific CalculatorFree online scientific calculator with trig, logs, powers, roots, factorials, nPr/nCr, memory and degree/radian modesEquation SolverSolve linear, quadratic, cubic, rational, radical, exponential, log and trig equations for x with full step-by-step working and a graphDerivative CalculatorDifferentiate any function step by step with the power, product, quotient and chain rulesIntegral CalculatorIntegrate step by step: power rule, u-substitution, integration by parts, partial fractions and trig identitiesLimit CalculatorEvaluate limits step by step with substitution, factoring, L'Hôpital's rule and limits at infinitySystem of EquationsSolve 2×2, 3×3 and larger systems by elimination, substitution, Cramer's rule or Gauss–Jordan row reduction, with every step shownInequality SolverSolve linear, compound, quadratic, polynomial, rational and absolute value inequalities with a sign chart and interval notationSimplify & ExpandSimplify algebraic expressions, expand brackets with FOIL, cancel rational expressions, find partial fractions and evaluate expressions step by stepFactoring CalculatorFactor polynomials step by step: greatest common factor, difference of squares, perfect squares, the AC method, sum and difference of cubes and rational rootsFraction CalculatorAdd, subtract, multiply and divide fractions and mixed numbers with stepsPercentage CalculatorFind X% of Y, what percent one number is of another, percent change, percent increase and decrease, and the original value — with stepsMatrix CalculatorDeterminant, inverse, transpose, rank, RREF, powers, addition and multiplication of matrices up to 6×6, with stepsStatistics CalculatorPaste a list of numbers to get mean, median, mode, range, quartiles, variance and standard deviation (sample and population) with steps