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Use the given conditions to write an equation for the line in point-slope form and in slope-intercept form. Passing through \( (8,-7) \) and perpendicular to the line whose equation is \( y=\frac{1}{5} x+4 \) Write an equation for the line in point-slope form. (Simplify your answer. Use integers or fractions for any numbers in the equation.) Write an equation for the line in slope-intercept form. \( \square \) (Simplify your answer. Use integers or fractions for any numbers in the equation.)

Ask by Lyons Craig. in the United States
Jan 24,2025

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**Point-Slope Form:** \( y + 7 = -5(x - 8) \) **Slope-Intercept Form:** \( y = -5x + 33 \)

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Beyond the Answer

To find the equation of the line that passes through the point \( (8, -7) \) and is perpendicular to the line given by \( y = \frac{1}{5} x + 4 \), we first need to identify the slope of the perpendicular line. The slope of the given line is \( \frac{1}{5} \), so the slope of the line we want is the negative reciprocal, which is \( -5 \). Using the point-slope form of the equation of a line, which is \( y - y_1 = m(x - x_1) \), we can substitute in our slope \( m = -5 \) and the point \( (x_1, y_1) = (8, -7) \): \( y - (-7) = -5(x - 8) \) Simplifying, we have: \( y + 7 = -5(x - 8) \) Now, for the slope-intercept form \( y = mx + b \), we will distribute and rearrange: \( y + 7 = -5x + 40 \) Subtracting 7 from both sides: \( y = -5x + 33 \) Summarizing: 1. In point-slope form: \( y + 7 = -5(x - 8) \) 2. In slope-intercept form: \( y = -5x + 33 \)

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