Review of Functions (Algebra 1) Modified

Front

Which relation is NOT a function? Options: {(1,-5), (-1,6), (1,5), (6,-3)}, {(2,7), (3,7), (4,7), (5,8)}

Back

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

Front

All of the y values or outputs are called what? Options: Domain, Range

Back

Range

Front

Is this table a function or not a function? Options: Function, Not a Function

Back

Function

Front

Is this relation a function? Options: No, because the x-values repeat, Yes, because all the x-values are different

Back

Yes, because all the x-values are different

Front

What is the range of the following relation: (9, -2) (4, 3) (8, 10) (-4, 8)? Range is the y values (x,y)

Back

-2, 3, 8, 10

Front

Define a function in mathematics.

Back

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

Front

What is the domain of a function?

Back

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

Front

What is the vertical line test?

Back

A method to determine if a relation is a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

What does it mean for a function to be one-to-one?

Back

A one-to-one function is a function where each output is produced by exactly one input.

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line and can be expressed in the form y = mx + b.