Plz hel i’ve got a test 2morrow ant if i don’t figure this out i’m fricked

Plz help plz give me the answer

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Define multiplicative inverse. give an example of a number and its multiplicative inverse.