Answer:
I think is 2/9 but I may be wrong
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x + 2x + 9y - 7y
3x + ( 9y - 7y )
3x + 2y
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K is the constant of proportionality also the same as slope.
You can see the commonality in the equations
y = kx
y = mx + b
The difference is that is a direct proportion the line will always go through the origin so the b will be zero.
The answer is B.
Answer:
B, I think that's the answer