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3 votes
Perpendicular lines, picture below.

Perpendicular lines, picture below.-example-1
User Tanathos
by
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2 Answers

2 votes

Answer:

second answer choice

Explanation:

if you calclulate the slope using rise over run you will se that is the right equation

User Aviv Ben Shabat
by
9.0k points
4 votes

Answer:


\sf (b)/(a) = (c)/(d)

Explanation:

The slope of left straight line is:


\sf m1 =(Rise)/(Run)=(b)/(-a)=-(b)/(a)

The slope of right straight line is:


\sf m2=(Rise)/(Run)=(-c)/(d)=-(c)/(d)

We can conclude that if the slope of two straight line is same or equal, than the lines are parallel.

So,

m1 = m2


\sf -(b)/(a) = -(c)/(d)

While simplifying this, we get


\sf (b)/(a) = (c)/(d)

Therefore,

Option 2nd is the answer:


\sf (b)/(a) = (c)/(d)

User Shun Min Chang
by
8.9k points

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