A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
2 answers:
Answer:
<em>y=7x</em>
Step-by-step explanation:
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Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
we have the points (2,14) and (4,28)
Find out the constant of proportionality k
For (2,14) ----> 
For (4,28) ----> 
so
the value of
therefore
The equation is
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Step-by-step explanation:
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Answer:
-28 is the number
Step-by-step explanation:
-28 + 13 = -15