Question

⚠ your teacher has been alerted that you left the tab.

x	y
-1	3
-1	6
2	9

does this table represent a function?
yes
no

Explanation:

A function requires each input (x-value) to have exactly one output (y-value). Here, the x-value -1 maps to two different y-values (3 and 6), violating the function definition.

Answer:

No