WHY do you need to find the number that is halfway between 0 and 1 1/2

Given that abcd is a parallelogram solve for m

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

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