Exploring Functions and Non-Functions

What is the output if the input is 'short' and the rule is 'opposite'?

• Small

• Tall

• Wide

• Narrow

If the input is 'three sides' and the rule is 'shape name', what is the output?

• Square

• Triangle

• Pentagon

• Hexagon

What is the output when the input is -2 and the rule is 'X + 1'?

• 1

• -1

• 0

• -3

Which of the following is true for a function?

• One output can have multiple inputs

• One input can have multiple outputs

• Each input has exactly one output

• Each output has exactly one input

In a function table, if an x-value repeats with different y-values, what does it indicate?

• It is a linear function

• It is a function

• It is a quadratic function

• It is not a function

What does it mean if an x-value is 'cheating' in a function table?

• It is greater than the y-value

• It is the same as the y-value

• It has no corresponding y-value

• It has multiple corresponding y-values

In a function map, what indicates that it is not a function?

• All x-values map to the same y-value

• All y-values map to the same x-value

• A y-value maps to multiple x-values

• An x-value maps to multiple y-values

If the x-value 1 maps to both -2 and 0 in a function map, what can be concluded?

• It is a function

• It is an onto function

• It is not a function

• It is a one-to-one function

What is the y-value for the x-value 2 in the ordered pair (2, 4)?

• 2

• 5

• 3

• 4

In a graph, if an x-value corresponds to multiple y-values, what does it indicate?

• It is a linear function

• It is a quadratic function

• It is not a function

• It is a function