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Naya [18.7K]
3 years ago
6

The product of the slopes of perpendicular lines equals what?

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0

If two non-vertical lines are perpendicular, then their slopes are opposite reciprocals giving you -1.

:) Hope this helps.

velikii [3]3 years ago
5 0

The product of the slopes of perpendicular lines equals -1

<u>Solution:</u>

Need to determine product of slope of perpendicular lines.

Product of slopes of perpendicular lines is always equal to -1.

lets verify this.

let consider following two equation of perpendicular lines

2x – y = 1

x + 2y = 2

Now evaluate slope of each line by representing them in slop intercept form that is y = mx + c

Where coefficient of x represents slope m.

Representing first line in slope intercept form we get

y = 2x – 1

On comparing above equation with slope intercept form we can say that its slope is 2.

Similarly representing x + 2y = 2 equation in slope intercept form we get

y=-\frac{1}{2} x+1

On comparing above equation with slope intercept form we can say that its slope is \frac{-1}{2}

On multiplying slopes of two perpendicular lines we get,

2 \times\left(-\frac{1}{2}\right)=-1

Hence product of slope of perpendicular line is -1

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