Answer:

Step-by-step explanation:
Given
The attached plot
Required
The line of the best fit using
and 
We have:


Calculate slope (m)




The equation is then calculated using:


Expand


Answer:
Yes
Step-by-step explanation:
Since they have 3 identical sides, they are congruent by SSS congruence.
HTH :)
Answer:
Step-by-step explanation:
Given
y = 3x + 2
Comparing with y = mx + c
slope (m) = 3
y-intercept (c) = 2
83x + P = 83x + Q <em>subtract 83x from both sides</em>
P = Q
The equation has no solution for P different Q (P ≠ Q).