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Law Incorporation [45]
3 years ago
7

In 2016, the cost of 2 ounces of pure gold was $2,640. Complete the double number line to show the cost for 1, 3, and 4 ounces o

f gold.
Mathematics
1 answer:
miss Akunina [59]3 years ago
5 0

Answer:

1 would be 1320

3 would be 3960

4 would be 5280

Step-by-step explanation:

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Which table represents a direct variation function?
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Direct variation is y=kx where k is a constant

the fiest way to see if it is direct or not, is if x increases, then y increases as well,
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the first one x increase and y increase
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y=kx
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so

see next one
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false
not it




2nd is increase and y decrease, so not direct variation

3rd is x is same but y increase so nope

4th is x increase and y increase, now test the constant
-7.5=-3k
2.5=k

-1 and -2.5
-2.5=-1k
-2.5=-1(2.5)
-2.5=-2.5
true

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