Answer:
Option C. 
Step-by-step explanation:
we know that
Using a Excel tool (Correl function)
see the attached table
The r-value is 
The 4 functions are:




Let's keep in mind that for large values of x, a quadratic function grows faster than a linear function:

for large values of x
In this problem, we can see that the only quadratic function is

, while all the others are linear functions, so the function that grows faster for large values of x is
Answer: She would have to practice for 3/4 of an hour left to reach her goal
Answer:
1. y = (3x^2 - 4)
2. y = (-x^2) + 2
3. y = (-x^2 - 8)
4. y = (3x^2 - 2) + 4
5. y = (3x^2 + 4)
6. y = (-1/4x^2)
Step-by-step explanation: