math 2

• a shldnt equal to 0 bc 2 is the highest exponent
• >/ or /< and > or <

  1. bracket
  2. parenthesis
• domain CANT repeat but range CAN
• each member of domain corresponds to range
• x=domain and y=range
• exponent is 1 = linear functions

  exponent is 2 = quadratic functions
• linear function is a straight line

  parabola is U shaped
• vertex form


  y=a(x-h)2+k
• how to make the expression into a perfect square trinomial?

  add constant

  a=(b/2a)2

  =b2/4a
• h=- b/2a and k= 4ac-b2/4a
• graph of quad eq is parabola 


  opens upward or downward
• turning point is vertex


  either lowest or highest point
• quad eq in form y=a(x-h)2+k vertex is (h,k)
• AOS (axis of symmetry) divides graph into 2 parts so 1/2 of graph is reflection of other half
• domain of quad function is set of all real numbers
• parabola = upward and parabola = downward

  >/ and /<