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14 November, 15:00

The equation of the trend line on the scatterplot below is y = 1.3x - 0.52 Using the trend line equation, what is the predicted approximate value of y when x = 3.5?

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  1. 14 November, 15:17
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    Replace x in the equation with 3.5 and do the arithmetic.

    y = 1.3*3.5 - 0.52

    y = 4.55 - 0.52

    y = 4.03

    The predicted approximate value of y is 4.03.
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