For each function given below. Find the simplified form of the difference quotient. a. f(x)= -5x^2
b. f(x)= -4x^2
c. f(x)= 9/x
d. f(x) =2x+3

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