Answer:
=3
Step-by-step explanation:
Combine like terms 3-6x=-15
Subtract 3 from both sides of the equation -6x=-18
divide both sides by 6 x=3
Answer:
This is not a good model because the residual plot becomes thicker at the end
Answer:
The coordinates of the other end is 
Step-by-step explanation:
Given


Required
Find the coordinates of the other end
Let Midpoint be represented by (x,y);
(x,y) = (5,2) is calculated as thus

So
and 
Where
and 
So, we're solving for 
Solving for 
Substitute 5 for x and -6 for x₁

Multiply both sides by 2


Add 6 to both sides


Solving for 

Substitute 2 for y and 2 for y₁

Multiply both sides by 2


Subtract 2 from both sides



Hence, the coordinates of the other end is 