Respuesta :
Answer:
They are perpendicular because they have slopes that are opposite reciprocals of 2 and negative one half
Step-by-step explanation:
They are perpendicular because they have slopes that are opposite reciprocals of 2 and negative one half.
Perpendicular lines
Two lines are known to be perpendicular if the product of their slope is -1.
Given the following equation of line AB and CD
AB; y − 3 = 2(x + 2),
CD = y -3 = -1/2 (x+2)
Slope of AB. = 2
Slope of CD = -1/2
Take their product
Product = 2 * -1/2
Product. = -1
Since their product is -1, hence the two lines are perpendicular
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