So this is our table:
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x-values | a b c d e f |
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y-values | g h i j k l |
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You can know that the values in the table are proportional if:

Hope that helps :)
To find the perpendicular line, we need to find the negative inverse slope.
y = -1/2x - 2
This line also passes through the point since both have the y intercept / value of -2.
Hope this helps!
Answer:

Step-by-step explanation:
Solving for
given the equation,
:

Solving for
when 
