Mathematics, 12.10.2020 06:01 stodd9503 COMPLETE EVERY PART AND YOU WILL BE NAMED BRAINLIEST! THANK YOU! Katalina is planning to attend a local community college as a full-time student before transferring to a four-year university. The cost of her tuition (excluding other fees and expenses) can be determined using the equation f(x) = 215x, where x is the number of credit hours she registers for. Part One In this situation, is y a function of x? Explain in terms of the situation. Part Two Describe the relationship between the cost of Katalina’s tuition and the number of credit hours she registers for. Part Three In order to be considered a full-time student, Katalina must register for at least 12 credit hours but no more than 21 credit hours. Explain how Katalina can determine the cost of registering as a full-time student. Part Four Compare and contrast the process Katalina would use for determining each of the following: ** the number of credit hours she registered for if she receives a bill for $3,870. ** the cost of her tuition if she registered for 18 credit hours.