Question

Please help :( I don't quite understand...

Answer 1

you shoulda payed attention in class

Explanation:

also u know it's bad when the test is so hard you can't even cheat on it

Answer 2

Explanation:

For Part A, use the function f(x) to find the average of tests taken.

X is number of test taken

f(x) is the average score given said num of tests taken,x,

We want after test number 3 so using the function,

`f(x) = 0.2x + 79`

Plug in. 3 for x, and we will get our answer.

`f(3) = 0.2(3) + 79 = 79.6`

Part B: Use the table for the answer.

When 2 test are taken, the average test score is

84

So part B is 84.

Part C:

`f(2) = 0.2(2) + 79 = 79.4`

`g(2) = 84`

Since

`g(2) > f(2)`

The science class had a higher average after 2 tests