Linear equations and inequalities
Solve, graph, and interpret one-variable and two-variable relationships.
School · Grade 9 Mathematics
Algebra I, built so the next math class is easier.
Work through linear equations, inequalities, functions, systems, exponent rules, and quadratics in the order that keeps later algebra and calculus from collapsing.
This is a public topic guide, not a separate complete Algebra I course. For parent-managed school learning, choose Grade 9 Mathematics. The separate older High School Algebra I catalog entry remains a preview.
Study sequence
Algebra I skills to drill in order
Functions and systems
Read function notation, then solve systems by substitution, elimination, and graphing.
Exponents and quadratics
Apply exponent rules, factor, complete the square, and solve quadratics.
Course path
Where Algebra I leads
SAT Math
Algebra is the largest single content area on the SAT Math section.
Open SAT MathCalculus
See what algebra fluency is preparing you for.
Open CalculusEngineering starter path
Explore a guide to available courses and future plans from algebra toward engineering topics.
Open starter pathIndependent platform note
YoUni is an independent online learning platform. These materials are original YoUni study resources for common Algebra I topics. This page does not promise a grade, score, credit, transfer result, official recognition, or outcome.