plz help me What specific strategies did you use to determine which relation is a function? Explain why?

Use the vertical line test

Step-by-step explanation:

If a vertical line crosses through the relation on the graph only once in all of the locations, then the relation is a function. However, if a vertical line crosses through the relation more than once, then the relation is not considered a function.

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!