Answer:
A is the correct answer.
By definition, a function is a relation where each input has exactly one output. In letter A, the inputs 0, 1, 2, and 3 all have exactly one output.
In B, the input 1 has two outputs.
In C, the input 2 has two outputs.
In D, the input 2 also has two outputs.
Please said thanks
{(0, 0), (1, 2), (2, 4), (3, 4)}
Step-by-step explanation:
10
um I pretty sure that's the answer but i could be wrong
the ANSWER is 1