SOLUTIONS ARE NOT ALWAYS WET
Solving Equations, Proportion, Variation and Other Word Problems

• Two of the Three Most Important Functions:
  identity, x
• opposite, -x
• Lines:
• vertical lines, x = a, a = some constant
• horizontal lines, y = a, a = some constant
• linear functions, y = ax + b, etc.
• Equations of Lines, y - y₁ =m (x - x₁), etc.
• Solving Linear Equations Graphically, Solve ax + b = cx + d

• RESOURCE PAGE - Solving Equations, Proportion, Variation and Other Word Problems
• See examples of inconsistent systems - Mentally &/or Graphically Solve Systems w/Appropriate Vocabulary & Possible Solutions
• Use Linear Combination (the Addition Method) to Solve Systems of Equations and Inequalities -- Gives instructions and examples.
• Solve Graphically w/Planes &Pencil (Includes Answers)
• Solver (Using Web Page)
• By Linear Combination (Adding Lines)
• By Substitution (Expression Swapping)
• - Algebra Notes
• Point-Plotting Intro
• SIMULTANEOUSLY? --additional vocabulary

• Quadratic Equation - this page computes using the formula, & the discriminant
• A Family of Quadratics y = ax² + bx + c
• Squaring, y = x², y = x ·x

EVERYTHING YOU EVER WANTED TO KNOW ABOUT QUADRATICS BUT WERE AFRAID TO ASK
• Vocabulary - parabolas, quadratics
• Resources - Quadratic Equations, Formula, & The Discriminant

Vocabulary

cross multiply

cross product

member

proper subset

quadratic formula

side

solve

solution

solution set

subset

vary

varies directly, varies inversely, varies jointly, variation

© 2009, Agnes Azzolino www.mathnstuff.com/math/spoken/here/2class/350/c35pg00.htm