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25 May, 10:05

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? 14 20 45 54

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  1. 25 May, 11:05
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    The answer is b i got it right
  2. 25 May, 13:55
    0
    1.8x-5.4=30 add 5.4 to both sides

    1.8x=35.4 divide both sides by 1.8

    x=354/18

    x≈19.67

    So 20 would be a good approximation for x.
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