Question 2 Essay Worth 10 points) (02.03, 02.05 MC)
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)

80.8 __ 79 ; 82.6 __81 ; Math class

Step-by-step explanation:

Given that :

Linear function for math class : f(x) = 0.9x + 79

. Data for science class :

x g(x)

1 78

2 79

3 80

Using a linear regression calculator ; the linear model for science class :

g(x) = 77 + x

For both models, x = number of test taken ; f(x) and g(x) = average test score

Average test score after completing test 2:

Math Class :

At x = 2:

f(2) = 0.9*2 + 79 = 80.8

Science class :

g(2) = 77 + 2 = 79

C.

Math Class :

At x = 4:

f(2) = 0.9*4 + 79 = 82.6

Science class :

g(2) = 77 + 4 = 81

Greater average after test 4:

Math Class has a better averahe after 4 tests

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step-by-step explanation:

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answer