MKX or MK11? What yall guys think?

Me with this one question, and i'll upvote the brainliest answer

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

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