Given that OA = 2x + 9y, OB = 4x + 8y and CD = 4x - 2y, explain the geometrical relationships between the straight lines AB and
CD.
1 answer:
Answer:
The geometrical relationships between the straight lines AB and CD is that they have the same slope
Step-by-step explanation:
Given


Required
The relationship between AB, CD
Since AB is a straight line and O is the origin, then:

Where:
====> 
====>
This implies that:
So:



So, we have:


Calculate the slope (m) of 

For AB


For CD



By comparison:

This implies that both lines have the same slope
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