Step 2 and 3, for step 2, associative property should be commutative property, and step 3 should be associative property instead of the commutative property, i did all the work and its right, but how should i explain it?

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done