College Algebra
By Dr. Akash Garg, DC, MS Pharmacology, MEd, MBA · Updated October 20, 2026
Every rule explained, every step shown. Free to read, practice and play, with no sign-up.
14chapters
70interactives
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Chapters
- 1Real Numbers & ExponentsNumber sets, properties, order of operations, exponent rules & scientific notation
- 2Linear Equations & InequalitiesSolving, formulas, applications, compound & absolute-value inequalities
- 3Graphs & LinesThe coordinate plane, slope, forms of a line, parallel & perpendicular
- 4Introduction to FunctionsDefinition, notation, domain & range, the toolkit graphs & transformations
- 5Systems of Equations & InequalitiesGraphing, substitution, elimination, 3×3 systems & applications
- 6Polynomials & FactoringOperations, GCF, grouping, trinomials & the special patterns
- 7Rational ExpressionsSimplifying, operations, complex fractions & rational equations
- 8Radicals & Rational ExponentsSimplifying, operations, rationalizing & radical equations
Show all 14 chapters
- 9Quadratic Equations & FunctionsFactoring, completing the square, the quadratic formula & parabolas
- 10Polynomial & Rational FunctionsEnd behavior, zeros, division, asymptotes & graphing
- 11Exponential FunctionsGrowth & decay, the number e, and compound interest
- 12Logarithmic FunctionsDefinition, evaluation, graphs & the properties of logarithms
- 13Exponential & Logarithmic EquationsSolving both types, extraneous solutions & applications
- 14Sequences, Series & the Binomial TheoremArithmetic & geometric sequences, infinite series & binomial expansion
Written by Dr. Akash Garg
Doctor of Chiropractic, MS in Pharmacology, MEd and MBA. Teaching college science since 2007.