Answer:
Second Choice.
Step-by-step explanation:
That is the linear function. Any coefficients with higher degrees won't be considered as a linear function.
So we can cut out the first and last choice.
Then we have only two choices which are
The second equation is called <u>Rational</u><u> </u><u>Function</u><u> </u>where a variable is a denominator.
Therefore, the correct answer is second choice.