Question

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.
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)

Answer 1

Answer:

see below

Step-by-step explanation:

Part A:  Let x=2

f(2) = .9(2) +79

      1.8+79

      80.8

Part B  Let x = 2

g(2) = 79

Part C

Let x= 4

f(4) =  .9(4) +79 = 3.6+79=82.6

g(4) = 81

Science class is higher after test 4