Grade Ninth Math (Algebra I)
Master foundational high school mathematics with comprehensive Algebra I lessons covering linear, quadratic, and exponential functions, systems of equations, polynomial operations and factoring, radical and rational expressions, and bivariate statistics. Build strong algebraic reasoning and prepare for advanced mathematics courses.
Numbers and Operations
Master real numbers, properties, and operations with complex expressions.
Start Learning →Expressions
Simplify and evaluate algebraic expressions using properties and order of operations.
Start Learning →Solve Linear Equations
Solve multi-step linear equations including those with rational coefficients.
Start Learning →Geometry and Measurement
Apply algebraic methods to geometric measurement and problem-solving.
Start Learning →Problem Solving with Units
Convert units and solve dimensional analysis problems algebraically.
Start Learning →Solve Linear Inequalities
Solve and graph linear inequalities including compound inequalities.
Start Learning →Absolute Value Equations and Inequalities
Solve absolute value equations and inequalities algebraically and graphically.
Start Learning →Coordinate Plane
Graph points, lines, and equations in the Cartesian coordinate system.
Start Learning →Direct and Inverse Variation
Understand and model direct variation (y = kx) and inverse variation (y = k/x).
Start Learning →Slope
Calculate slope from graphs, tables, and points; interpret as rate of change.
Start Learning →Linear Equations
Write and graph linear equations in slope-intercept, point-slope, and standard forms.
Start Learning →Function Concepts
Master function notation, domain, range, and function evaluation.
Start Learning →Linear Functions
Analyze, graph, and interpret linear functions in multiple representations.
Start Learning →Systems of Linear Equations
Solve systems using graphing, substitution, and elimination methods.
Start Learning →Two-Variable Linear Inequalities
Graph linear inequalities in two variables and solve systems of inequalities.
Start Learning →Piecewise-Defined Functions
Evaluate, graph, and interpret piecewise-defined functions.
Start Learning →Rational Exponents
Convert between radical and rational exponent notation; simplify expressions.
Start Learning →Scientific Notation
Perform operations with numbers in scientific notation; solve real-world problems.
Start Learning →Sequences
Analyze arithmetic and geometric sequences; write recursive and explicit formulas.
Start Learning →Exponential Functions
Graph, analyze, and apply exponential growth and decay functions.
Start Learning →Polynomials
Add, subtract, multiply polynomials; understand polynomial structure and degree.
Start Learning →Factor Polynomials
Factor polynomials using GCF, grouping, and special product patterns.
Start Learning →Quadratic Functions
Graph parabolas; identify vertex, axis of symmetry, and intercepts.
Start Learning →Quadratic Equations
Solve quadratics by factoring, completing the square, and quadratic formula.
Start Learning →Linear, Quadratic, and Exponential Functions
Compare and contrast properties of linear, quadratic, and exponential functions.
Start Learning →Absolute Value Functions
Graph and analyze absolute value functions and their transformations.
Start Learning →Function Operations
Perform operations on functions: addition, subtraction, multiplication, division, composition.
Start Learning →Function Transformations
Apply transformations: translations, reflections, stretches, and compressions.
Start Learning →Radical Expressions
Simplify, add, subtract, multiply, and divide radical expressions.
Start Learning →Radical Functions and Equations
Graph radical functions and solve radical equations algebraically.
Start Learning →Rational Functions and Expressions
Simplify rational expressions; graph rational functions; identify asymptotes.
Start Learning →Data and Graphs
Display, interpret, and analyze data using various graphical representations.
Start Learning →Single-Variable Statistics
Calculate and interpret measures of center, spread, and position.
Start Learning →Bivariate Statistics
Analyze scatter plots, correlation, and linear regression models.
Start Learning →Probability
Calculate theoretical and experimental probabilities of simple and compound events.
Start Learning →Algebra I Critical Focus Areas
Linear Functions
Master slope, linear equations in multiple forms, systems, and inequalities
Quadratic Functions
Factor, solve, and graph quadratics using multiple methods and forms
Exponential Functions
Understand exponent rules, scientific notation, and exponential growth/decay
Master Algebra I and Excel in High School Mathematics
Build proficiency in linear, quadratic, and exponential functions, systems of equations, polynomial operations and factoring, radical and rational expressions, and statistical modeling through comprehensive lessons aligned with Common Core State Standards for Algebra I. Prepare for advanced mathematics courses including Geometry and Algebra II.