The y-intercept of the linear equation of best fit, considering the slope and the means, is of -60.428.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
For a line of best-fit, the y-intercept is given by:

The parameters in this problem are given as follows:

Then:

More can be learned about linear functions at brainly.com/question/24808124
#SPJ1
Answer:

Step-by-step explanation:
Let the variable be taken as 'r'.
Then, by raising it to the 7th power, we'll get the result as 

Now, by doubling the result....


Answer:
1/5
Step-by-step explanation:
-5 - (-7) = 2
5 - (-5) = 10
2/10 ÷2
slope = 1/5