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tino4ka555 [31]
2 years ago
12

Write an equation in standard form for the line that passes through (5, -2) and is perpendicular to 3x-4y=12

Mathematics
1 answer:
Tasya [4]2 years ago
6 0

The equation in standard form for the line that passes through (5, -2) and is perpendicular to 3x - 4y = 12 is 4x + 3y = 14

<h3><u>Solution:</u></h3>

Given that line that passes through (5, -2) and is perpendicular to 3x - 4y = 12

We have to find the equation of line

<em><u>The slope intercept form is given as:</u></em>

y = mx + c  ------ eqn 1

Where "m" is the slope of line and "c" is the y-intercept

<em><u>Let us first find the slope of line</u></em>

Given equation of line is 3x - 4y = 12

On rearranging the above equation to slope intercept form,

3x - 4y = 12

4y = 3x - 12

y = \frac{3}{4}x - 3

On comparing the above equation with slope intercept form,

m = \frac{3}{4}

Thus the slope of line is m = \frac{3}{4}

We know that product of slope of given line and slope of line perpendicular to given line is always -1

slope of given line x slope of line perpendicular to given line = -1

\begin{array}{l}{\frac{3}{4} \times \text { slope of line perpendicular to given line }=-1} \\\\ {\text {slope of line perpendicular to given line }=\frac{-4}{3}}\end{array}

Now we have to find the equation of line with slope m = \frac{-4}{3} and passes through (5, -2)

Substitute m = \frac{-4}{3} and (x, y) = (5, -2) in eqn 1

-2 = \frac{-4}{3}(5) + c\\\\-2 = \frac{-20}{3} + c\\\\-6 = -20 + 3c\\\\3c = 14\\\\c = \frac{14}{3}

<em><u>The required equation of line is:</u></em>

Now substitute m = \frac{-4}{3} and c = \frac{14}{3}

y = \frac{-4}{3}x + \frac{14}{3}

The standard form of an equation is Ax + By = C

x and y are variables and A, B, and C are integers

Rewriting the above equation,

y = \frac{-4}{3}x + \frac{14}{3}

3y = -4x + 14

4x + 3y = 14

Thus the equation of line in standard form is found out

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