change in quantity   5 videos

• 

  Percent Change

  Algebra Solving Equations

  How to calculate a percent change.

  percent percent change
• 

  Ratios

  Algebra Solving Equations

  How to write ratios to compare two quantities.

  ratio fraction
• 

  Definition of Slope

  Algebra Linear Equations and Their Graphs

  How to understand the idea of slope.

  slope change ratio fraction
• 

  Mixture Problems

  Algebra Word Problems Using Systems of Equations

  How to solve word problems when mixing two quantities with different prices.

  amount price mixture word problem
• 

  Finding the Slope of a Line from a Graph

  Algebra Linear Equations and Their Graphs

  How to find the slope of a line if given a graph.

  slope change ratio fraction slope triangle