Ninth grade algebra in English

Expressions and Equations

Understanding variables, constants, coefficients, and the ability to simplify and manipulate algebraic expressions.

Solving Linear Equations

Techniques for solving equations of the form ax + b = c, including one-variable and two-variable systems.

Functions

An introduction to the concept of functions, including linear functions and their graphs.

Inequalities

The process of solving and graphing inequalities on a number line.

Polynomials

Operations with polynomials, including addition, subtraction, multiplication, and factoring.

Quadratic Equations

Introduction to quadratic equations, including standard form and methods of solving such as factoring and using the quadratic formula.

Nitrate Algebra

Mathematical calculations used to balance chemical equations involving nitrates and perform stoichiometry related to nitrate compounds.

Variables in Nitrate Algebra

Variables representing quantities of nitrates used in chemical calculations.

Systems of Equations in Nitrate Algebra

Systems of equations used to find unknown concentrations related to nitrate compounds.

Balancing Chemical Equations

The mathematical process involved in ensuring that the number of atoms of each element is equal on both sides of a chemical equation involving nitrates.

Concentration in Solutions

Understanding the amount of solute (nitrate) present in a given volume of solution.

Stoichiometry

The calculation of reactants and products in chemical reactions involving nitrates.