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29 March, 15:43

The researcher used the line y = 0.4x + 4 to model data when substituted the value of x=14 into this equation what did the result tell her

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  1. 29 March, 15:44
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    Alrighty lets see if I can explain this.

    The formula is y=mx+b. We already have m, 0.4, which is the slope of the line, and we have b, 4, which is the y-intercept. If you plug in the given value of x, your formula ends up being y=0.4 (14) + 4 and when we graph that, your end with a straight line across the graph horizontally. If you solve the formula, your answer is y = 9.6

    The slope of any horizontal line is 0, as it remains constant.
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