Linear Equations

Introduction

• A linear equation is an equation, when graphed, produces a straight line.
• For example:
• More generally, it is any equation of the form:
  • a₁ to a_n and b are real numbers, and are the coefficients of the equation.
  • x₁ to x_n are the variables of the equation.
• Linear equations do not contain terms such as:
  • x²
  • 2^x
• Because these terms are not linear
  • they do not produce straight lines when graphed.