Ways to show a function Four ways to display/write a function Ordered pairs Mapping diagram Table Graph

Function or No Function? Yes, each member of the domain is assigned To exactly one member of the range

Function or No Function? No, the number 4 is assigned to 2 numbers in the range (1 & 3)

Function or No Function? Yes, each member of the domain is assigned To exactly one member of the range

Function or No Function? This is a MAPPING DIAGRAM! Yes, each member of the domain is assigned To exactly one member of the range

Function or No Function? No, the number 4 is assigned to 2 different numbers in the range (6 & 7)

Function or No Function? No, does not pass the vertical line test. This means that numbers of the domain are assigned to more than one value in the range

Evaluate a) f(-3) = 11 b) f(6) = -16 c) g(-4) = -36 d) g(7) = -102 e) f(a) = -3a+2