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

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.