Alg 1 3.1-3.4: Functions

Front

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

Back

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

Front

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

Back

R: {1, -3, -4}

Front

What does f(x) represent in a function?

Back

f(x) is the same thing as y.

Front

How do you determine if a set of points represents a function?

Back

A set of points is a function if each input (x-value) has exactly one output (y-value).

Front

What is the domain of the function with points {-4, -2, 0, 2} and range {-2, 1}?

Back

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

Front

What is the range of the function with points {-4, -2, 0, 2} and range {-2, 1}?

Back

R: {-2, 1}.

Front

Is the set of points {-4, -2, 0, 2} and range {-2, -2, 1, 1} a function?

Back

No, it is not a function because -2 is repeated.

Front

Which equation matches the table of values where y increases by 1 when x increases by 1?

Back

y = x + 4.

Front

What linear equation models Tim's phone payment situation?

Back

y = 50x + 125.

Front

What is a function?

Back

A function is a relation where each input has exactly one output.