Answer:
Y=15x
Step-by-step explanation:
<h2>Okay so let's approach this problem!</h2><h2 />X is books and Y is total cost
Let's find the slope!
Y2-Y1/ X2-X1
Just replace
The slope is 15
Now replace x and y with coordinates and solve
The final equation:
y = 15x
That's it! If you have any questions please ask! Brainliest Appreciated.
Answer:
The slope of the line of best fit is ⇒ 2nd option
Step-by-step explanation:
The formula of the slope of a line is
<em>To find the slope of the best line fit choose two points their positions make the number of the points over the line equal to the number of the points below the line</em>
From the attached graph points (1 , 9) and (8 , 3) are the best choice
∵ The line passes through points (1 , 9) and (8 , 3)
∴ = 1 and
= 8
∴ = 9 and
= 3
- Substitute them in the formula of the slope
∴
∴ The slope of the line of best fit is