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The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table. Using the equation for the line of best fit, what is a good approximation for x when f(x) = 30?
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Jul 7, 2018
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The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table. Using the equation for the line of best fit, what is a good approximation for x when f(x) = 30?
Mathematics
high-school
Ewgenij Sokolovski
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Ewgenij Sokolovski
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Answer:
20
Explanation:
Stelterd
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Jul 9, 2018
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Stelterd
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We need to solve the equation for x:
f(x) ≈ 1.8x − 5.4
f(x) = 30
Then 1.8x − 5.4 = 30
1.8x = 30+5.4
1.8x = 35.4
x = 35.4/1.8
x = 19.66
Using the equation for the line of best fit, a good approximation
for x is 20.
Leonid Dashko
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Jul 12, 2018
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Leonid Dashko
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