Functions Review

Front

What is a function?

Back

A function is a relation that assigns exactly one output (y) for each input (x).

Front

How can you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn intersects the graph at most once.

Front

What is the domain of a function?

Back

The domain of a function is the set of all possible input values (x) for which the function is defined.

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y) that the function can produce.

Front

Given the function {(0,1), (1,-3), (2,-4), (-4,1)}, what is the domain?

Back

D: {0, 1, 2, -4}.

Front

Given the function {(0,1), (1,-3), (2,-4), (-4,1)}, what is the range?

Back

R: {1, -3, -4}.

Front

Evaluate f(2) if f(x) = 5x - 2.

Back

f(2) = 5(2) - 2 = 10.

Front

What does it mean for a relation to be 'not a function'?

Back

A relation is 'not a function' if at least one input (x) is associated with more than one output (y).

Front

Identify the domain of the relation (-6,14), (0,32), (2,38), (4,44).

Back

Domain: -6, 0, 2, 4.

Front

Identify the range of the relation (-6,14), (0,32), (2,38), (4,44).

Back

Range: 14, 32, 38, 44.