/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 76 Write equations of the lines thr... [FREE SOLUTION] | 91Ó°ÊÓ

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Write equations of the lines through the given point (a) parallel to and (b) perpendicular to the given line. $$5 x+3 y=0, \quad\left(\frac{7}{8}, \frac{3}{4}\right)$$

Short Answer

Expert verified
The equation of the line parallel to the given line is \(y=-\frac{5}{3}x+\frac{49}{24}\), and the equation of the line perpendicular to the given line is \(y=\frac{3}{5}x+\frac{9}{40}\).

Step by step solution

01

Find the slope of the given line

First, we need to put the equation into slope-intercept form, \(y=mx+b\), where \(m\) is the slope. Here, the equation is \(5x+3y=0\). Rearranging this, we get \(y=-\frac{5}{3}x\). So the slope of the given line is \(-\frac{5}{3}\).
02

Write the equation of the line parallel to the given line

Since parallel lines have the same slope, the equation of the line parallel to the given line that passes through the given point \(\left(\frac{7}{8},\frac{3}{4}\right)\) will use the same slope. Using the slope-intercept form, we can plug in \(m=-\frac{5}{3}\) and substitute the point as \(x_1, y_1\) in the formula \(y-y_1=m(x-x_1)\) to get the equation of this line.
03

Write the equation of the line perpendicular to the given line

As the slope of perpendicular lines are negative reciprocals of each other, the slope of the line perpendicular to the given line would be \(-1/(-\frac{5}{3}) = \frac{3}{5}\). Similar to the previous step, this slope is substituted into the point-slope form of a line equation, along with the given point, to obtain the equation of this line.

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