Matt gives half of his books to the local library and kept the other half. his best friend gives him 3 more books. he now has 57 books. how many did he have to start. this is a algebra question haves to have a main first equation

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