f(x) = 0.2x + 78 The linear function represents the average test score in your math class where x is the number of the test taken . The linear function the average test score in your science class , where x is the number of the test taken . g(x) represents g(x) 86 2 84 3 82 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 42 Show work to support your answer ( 6 points )