How to determine if a function is one to one algebraically?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

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

What is the point slope form of a line with slope -5 that contains point (2,-1)