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What is the equation of the line that is perpendicular to the given line and passes through the point (3, 0)?


a

5x − 3y = 15


b

5x − 3y = −15


c

3x + 5y = −9


d

3x + 5y = 9

What is the equation of the line that is perpendicular to the given line and passes through the point (3, 0)? a 5x 3y = 15 b 5x 3y = 15 c 3x + 5y = 9 d 3x + 5y class=

Verified Answer :

Step \(1\)

Find the slope of the given line

Let

\(A(-3,2)\ B(2,-1)\)

slope mAB is equal to

\(mAB=\frac{(y2-y1)}{(x2-x1)} \\ \\ mAB=\frac{(-1-2)}{(2+3)} \\ \\ mAB=-\frac{3}{5}\)

Step \(2\)

Find the slope of the line that is perpendicular to the given line

Let

CD ------> the line that is perpendicular to the given line

we know that

If two lines are perpendicular, then the product of their slopes is equal to \(-1\)

so

\(mAB*mCD=-1\\ mAB=-\frac{3}{5} \\ mCD=-\frac{1}{mAB} \\ mCD=\frac{5}{3}\)

Step \(3\)

Find the equation of the line with mCD and the point (3,0)

we know that

the equation of the line in the form point-slope is equal to

\(y-y1=m(x-x1)\\\\ y-0=\frac{5}{3} *(x-3)\\\\ y=\frac{5}{3} x-5\)

Multiply by \(3\) both sides

\(3y=5x-15\)

\(5x-3y=15\)

therefore

the answer is

the equation of the line that is perpendicular to the given line is the equation \(5x-3y=15\)

Answer:

Answer choice (B) for this question: 5x - 3y = 15