Answer:
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Answer:
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The slope of a line is rise over run. Learn how to calculate the slope of the line in a graph by finding the change in y and the change in x.
Step-by-step explanation:

therefore, the Correct choice is d) 15
2x + y - (x + y) = 3z - 6z
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<span>x = -3z </span>
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<span>(-3z, 9z) </span>
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<span>(x,y,z) = (-3z, 9z, z)
</span>--------------------------
<span>x = -3z, y = 9z
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There for the answer is </span><span>(-3z, 9z) </span>
Answer:
18) it is parallel to y axis