The variables x and y are directly proportional, and y=4 when x=9. What is the value of y when x=18?
2 answers:
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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