Algebra 1· Study notes
Algebra
Linear equations and functions, systems, exponents, polynomials, factoring, quadratics, radicals and rational expressions — the toolkit every later course assumes.
What you'll be able to do
- Solve linear equations, inequalities and systems
- Graph and interpret linear and quadratic functions
- Multiply and factor polynomials
- Solve quadratics three ways
Read the notes as a guided lesson
Walk the notes one box at a time — prose, worked examples, quick checks — with a timed practice round after every section. For the full course with interactive lessons, go back to the course.
Every test ends with a score by topic and a list of what to revisit. Test out of a topic with 80% or better to mark it mastered.
Topics
Data & Statistics
9 lessonsCenter, spread, displays, scatter plots, correlation, and two-way tables
Foundations
11 lessonsEverything you need before Algebra 1
Equations & Inequalities
14 lessonsEverything you need to solve, rearrange, and graph.
Linear Equations & Functions
12 lessonsEverything you need: the coordinate plane, functions, slope, and the equations of lines
Systems of Equations
17 lessonsEverything you need: graphing, substitution, elimination, special cases, inequalities, and word problems.
Exponents
12 lessonsEvery rule, tip, and worked example in one place
Polynomials
11 lessonsVocabulary, degree, standard form, adding, subtracting, multiplying, and special products
Factoring
11 lessonsTurning sums into products — the reverse of multiplying
Quadratics
11 lessonsParabolas, factoring, square roots, completing the square, the quadratic formula, the discriminant, vertex form, and applications
Radicals
12 lessonsSquare roots, simplifying, operations, and radical equations