The linear function f(x) = 0.9x + 79 represents the average test score in your represents the average test score in your science class, where x is the number of the test taken. x g(x) 1 78 2 79 3 80 Part A: Determine the test average for your math class after completing test 2. (2 points) Part B: Determine the test average for your science class after completing test 2. (2 points) Part C: Which class had a higher average after completing test 4? Show work to support your answer. (6 points) 12 « Source гс Format Styles THE B 1 0 5 X, x a.​