Question

PLEASE HELP ASAP The linear function f(x) = 0.5x + 80 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 81
2 83
3 85


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 the 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)

Answer 1

Answer:

1) We calculate f(2) = 1/2·2 + 80 = 81

2) We calculate g(2). From your question I see that g(x) = 80 + x, so g(2) = 80 + 2 = 82.

3) Calculate f(4) and g(4) and see which one is the higher result:

f(4) = 82

g(4) = 84

The science test went better.