100 POINTS IF ANSWERED CORRECTLY The linear function f(x) = 0.9x + 79 represents the average test score in your math class, where x is the number of the test taken. The linear function g(x) 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)

Part C: MATHS

Step-by-step explanation:

Part C: after 4 tests:

SCIENCE: g(x) = 81 (following linear increments of 1 per test)

fMATHS: (x)  = 0.9 . 4 + 79 = 82.6

then, MATHS class has a higher average

Part A: since the equation is f(x) = 0.9x + 79, I have to replace x with 2. 0.9 times 2 is 1.8, and 1.8 plus 79 is 80.8. The average is 80.8.

Part B: as shown in the table, the average is 79 for test 2.

Part C: Math has a higher average score. Since the equation for f(x) is f(x) = 0.9x + 79, and x is the number of tests taken, you replace the x with 4. 0.9 times 4 is 3.6, and 3.6 plus 79 is 82.6. And for g(x), since the scores are going up by one, for test 4 the average would be 81. 82.6 > 81.

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step-by-step explanation: