The slope of the best fit for the 3 given points is 500, so the correct option is b.
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How to find the slope?</h3>
Remember that for a line that passes through two points (x₁, y₁) and (x₂, y₂) the slope is:

With the 3 given points we can find 3 slopes, and then we will need to find the average of these 3.
The 3 points are: (3, 2,750), (6, 4,200), and (9,5,750)
Then the 3 slopes are:

The average slope is:

So the correct option is b.
If you want to learn more about slopes:
brainly.com/question/1884491
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Answer:
1 and 5= corresponding angles.
4 and 2=vertical opposite angle
3 and 6=co interior angle.
5 and 8=linear pair.
5 and 3= alternate interior angle
2 and 8=alternate exterior angle.
Answer:
x=28
Step-by-step explanation:
16 + 12 = 28
x=28
this is ez