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.

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Presentation transcript:

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

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

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

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