A bag contains blue marbles and red marbles, 66 in total. The number of blue marbles is 9 less than 4 times the number of red marbles. How many blue marbles are there?

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