Evaluating Functions

Front

Evaluate f(x) = x² for x = -8

Back

64

Front

Evaluate f(x) = -2x + 13 for f(10)

Back

-7

Front

Is the relation a function? Why? (x-values: 11 has two y-values)

Back

No, because the x-value 11 has two y-values pair with it.

Front

Which relation is NOT a function? {(1,-5), (3,1), (-5,4), (4,-2)} or {(1,-5), (-1,6), (1,5), (6,-3)}?

Back

{(1,-5), (-1,6), (1,5), (6,-3)}

Front

Evaluate f(33) for f(x) = 3x/3

Back

11

Front

What is a function?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the domain of a function?

Back

The set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) for the function.

Front

Evaluate f(x) = 2x + 5 for x = 4

Back

13

Front

What does it mean for a relation to be a function?

Back

Each x-value must correspond to only one y-value.