Section+1.12

Last year, we learned two formulas for deciding how much a graph should be stretched or shifted, horizontally or vertically (they are below the graph they belong to):
 * f(x)=A sin (ax + b) + B**


 * f(x)=A cos (ax + b) + B**

Today in class, we learned about amplitude. In the equations above:
 * A=vertical stretch**
 * b=horizontal shift {Mrs. Tyson adds that there are some caveats to this one}**
 * B=vertical shift**
 * a= horizontal stretch {this one is a little wonky as well}**