Is it a function? & Evaluating Functions

Front

Is this set of ordered pairs a function or not a function? {(2,3), (2,4), (3,5)}

Back

Not a Function

Front

Is this graph a function or not a function? (Graph showing a vertical line intersecting the curve at two points)

Back

Not a Function

Front

Is this mapping a function or not a function? {(1,2), (2,3), (3,2)}

Back

Function

Front

Is the relation a function? {(1,5),(1,7),(3,9),(4,11)}

Back

No

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

What is the vertical line test?

Back

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

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Front

What is a domain in a function?

Back

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

Front

What is a range in a function?

Back

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

Front

If f(x) = 2x + 3, what is f(2)?

Back

f(2) = 2(2) + 3 = 7.