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Sagot :
The good approximation for the value of the function, f(x), when x = 18 is -2.
Given
A line of best fit is for the set of points in the table.
What is the linear equation?
The standard form of the linear equation is;
[tex]\rm y =mx+c[/tex]
Where m is the slope of the line and c is the intercept.
Therefore,
By using the equation for the line of best fit, what is a good approximation for the value of the function, f(x), when x = 18 is;
[tex]\rm f(x) = -0.86x + 13.5\\\\f(18)= -0.86(18)+13.5\\\\f(18)= -15.48 + 13.5 \\\\ f(18)= -1.98[/tex]
Hence, The good approximation for the value of the function, f(x), when x = 18 is -2.
To know more about the Linear function click the link given below.
https://brainly.com/question/2373184
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