1Cademy - A small business owner is tracking the net profit of a new product line. The profit increases at a constant rate of $$\frac{2}{5}$$ thousand dollars for every unit sold. After selling $$10$$ units, the net profit is $$3$$ thousand dollars. True or False: The linear equation $$y = \frac{2}{5}x - 1$$ correctly models the net profit ($$y$$) in thousands of dollars based on the number of units sold ($$x$$).

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Finding the Equation of a Line with Slope $\frac{2}{5}$ Through (10, 3)

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A small business owner is tracking the net profit of a new product line. The profit increases at a constant rate of $\frac{2}{5}$ thousand dollars for every unit sold. After selling $10$ units, the net profit is $3$ thousand dollars. True or False: The linear equation $y = \frac{2}{5}x - 1$ correctly models the net profit ( $y$ ) in thousands of dollars based on the number of units sold ( $x$ ).

Updated 2026-09-18

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