Solve the equation. 9x−(3x+9)=2x−25 Select the correct choice below and fill in any answer boxes in your choice. A. The solution
1 answer:
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Answer:
The required equation is:
Step-by-step explanation:
We have x = Distance of goal posts
y = field Goals made
The data given is:
x y
20 9
25 6
30 7
35 4
40 1
45 2
50 1
We need to find the regression equation y = bx + a
Where
Sum of all values of x = 245
Sum of all values of y = 30
Now, calculating mean using formula:
Mean of x (Mₓ) = 35
Mean of y () = 4.28
Sum of squares (SSₓ) = 700
Sum of products (SP) = -190
Now, finding b:
Now, finding a:
So, the required equation is: