Hello Everyone,

Below links are from Khan Academy. I found Khan Academy very helpful to understand any basic concepts. You can either go to Khan academy website directly or click on the topics below.

Samarth

### Introduction to Algebra

- Overview and history of algebra
- Introduction to variables
- Substitution and evaluating expressions
- Evaluating expressions word problems
- Writing algebraic expressions introduction
- Introduction to equivalent algebraic expressions
- Dependent & independent variables
- Combining like terms
- Interpreting linear expressions
- Evaluating expressions with unknown variables
- Manipulating expressions with unknown variables
- Reasoning about expressions with unknown variables
- Irrational numbers
- Proofs concerning irrational numbers
- Sums and products of rational and irrational numbers
- Division by zero
- Binary and hexadecimal number systems

### Solving basic equations & inequalities (one variable, linear)

This topic covers: – Solving one-variable linear equations – Solving one-variable linear inequalities

- Algebraic equations basics
- Why we do the same thing to both sides of an equation
- One-step addition & subtraction equations
- One-step multiplication & division equations
- Two-steps equations intro
- Two-step equation word problems
- Linear equations with variables on both sides
- Linear equations with parentheses
- Analyzing the number of solutions to linear equations
- Linear equations word problems
- Linear equations with unknown coefficients
- Old school equations with Sal
- Introduction to inequalities with variables
- One-step inequalities
- Two-step inequalities
- Multi-step inequalities
- Compound inequalities

### Two-variable linear equations intro

- Two-variable linear equations intro
- x-intercepts and y-intercepts
- Slope
- Horizontal & vertical lines
- Intro to slope-intercept form
- Graphing slope-intercept equations
- Writing slope-intercept equations
- Point-slope form
- Standard form
- Summary: Forms of two-variable linear equations
- Interpreting linear functions and equations
- Comparing linear functions
- Constructing linear models for real-world relationships
- Linear models word problems

### Linear equations, functions, & graphs

This topic covers: – Intercepts of linear equations/functions – Slope of linear equations/functions – Slope-intercept, point-slope, & standard forms – Graphing linear equations/functions – Writing linear equations/functions – Interpreting linear equations/functions – Linear equations/functions word problems

### Sequences

### Two-variable inequalities

This topic covers: – Solutions to linear inequalities and systems of inequalities – Graphing linear inequalities and systems of inequalities – Linear inequalities and systems of inequalities word problems

### Functions

This topic covers: – Evaluating functions – Domain & range of functions – Graphical features of functions – Average rate of change of functions – Function combination and composition – Function transformations (shift, reflect, stretch) – Piecewise functions – Inverse functions – Two-variable functions

### Absolute value equations, functions, & inequalities

This topic covers: – Solving absolute value equations – Graphing absolute value functions – Solving absolute value inequalities

### Quadratic equations & functions

This topic covers: – Solving quadratic equations – Graphing quadratic functions – Features of quadratic functions – Quadratic equations/functions word problems – Systems of quadratic equations – Quadratic inequalities

### Polynomial expressions, equations, & functions

This topic covers: – Adding, subtracting, and multiplying polynomial expressions – Factoring polynomial expressions as the product of linear factors – Dividing polynomial expressions – Proving polynomials identities – Solving polynomial equations & finding the zeros of polynomial functions – Graphing polynomial functions – Symmetry of functions