Degree

1
Degree

• The degree of a polynomial is the value of the
  highest exponent.
• E.g. 5x3 - 4x2 7x - 8
• The highest exponent is 3, ? the degree of this
  polynomial is 3
• y -6x 39
• The highest exponent is 1, ? the degree is 1
• This is a linear function (in the form y mx
  b)
• Linear functions have a degree of 1
• y 3x2 2x 16
• The highest exponent is 2, ? the degree is 2
• This is a quadratic function (in the form y ax2
  bx c)
• Quadratic functions have a degree of 2

2
Function Notation

• f(x) is called function notation
• It is read as f of x or f at x
• E.g. y 2x - 7 would be written as f(x) 2x - 7
  in function notation
• f(2) 5
• This means that when x 2, y 5
• Examples

3
FOIL

• Firsts
• Outsides
• Insides
• Lasts
• E.g. Expand (x 3)(x - 5)

4
FRAME IT!

• Add the new information that you learned about
  degree and function notation to your best
  friend
• Homework
• p. 24 2a-c, 3, 6
• p. 32 1-5, 6bcd, 7-12, 13acd, 16, 17