The product of all the values of $x$ for which the tangent lines to the graph of $y = \frac{10}{x+10}$ are parallel to the line $10x + 4y + 1 = 0$ is 0
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We can rewrite this equation in slope-intercept form (y=mx+b) by solving for y: 4y = -10x - 1 y = (-10/4)x - 1/4 The slope of this line is -10/4, which simplifies to -5/2. Show more…
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