FUNCTIONS: INDEPENDENT& DEPENDENT VARIABLES FROM TABLES/GRAPHS

• I can identify independent and dependent variables. 

• I can write an equation in function notation and evaluate a function for given input values.

Range
Output/Dependent Variable
Y

ROY

Domain
Input/Independent Variable
X

DIX

IN DIX and ROY which variable (letter) is INDEPENDENT?
WHICH ONE HAS THE LETTER I IN IT?????

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LETS TALK ABOUT IT

IN DIX and ROY which variable (letter) is INDEPENDENT?
WHICH ONE HAS THE LETTER I IN IT?????

​

LETS TALK ABOUT IT

THE LINE THAT GOES UP AND DOWN IS YOUR Y

THE LINE THAT GOES LEFT TO RIGHT IS YOUR X
THEN THINK ABOUT DIX and ROY

​

LETS TALK ABOUT IT

THE LINE THAT GOES UP AND DOWN IS YOUR Y

THE LINE THAT GOES LEFT TO RIGHT IS YOUR X
THEN THINK ABOUT DIX and ROY

​

LETS TALK ABOUT IT

• Independent Variable: input of the function (x)

• Dependent Variable: output of the function (y)