Homework: Set - Prerequisite Week 7 Homework Question 8, IR.10.25 HW Score: 46.67%, 7 of 15 points Save Part 1 of 4 Points: 0 of 1 Check here for Instructional material to complete this problem. For the spring semester 2009, part-time students at a college paid $422 per credit (unit or hour) for tuition and paid a mandatory part-time student fee of $20 per semester. Let T be the total one-semester cost (in dollars) of tuition plus part-time student fee for c credits of classes. Complete parts a. through d. a. Find the slope of the linear model that describes this situation. What does it mean in this situation? The slope is The tuition increases by $per credit