Wednesday, February 29, 2012

Midterm Page 3



This is the parent graph of a rational expression...just like the others...there is a, h, k
  a is positive graph opens up
  a is negative graphs open down

  h rt/lt (opposite)
  k up/dn

You have to know what each of the parent graphs look like....y = x is a linear equation (it makes a line),
y = x^2 is a quadratic equation (it makes a parabola)...use your Parent Graphs presentation to know what it is that causes a graph to change shapes...then understand to change its "style" you change a....
  h or k...h is the number inside (x - h) under radical or in denominator (opposite - negative moves it right, positive moves the vertex left) k is the constant....which moves it up or down EXACTLY whatever the number is...

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