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KiRa [710]
4 years ago
5

Just need a check

Mathematics
1 answer:
Over [174]4 years ago
3 0

Wrong. 
If it's a matter of directly proportional, then all you need is one single point.

Look at the first one:

x = 20,000
y = 1,000

y/x = 1,000/20,000 = 0.05

y = <em>0.05</em> x

The constant of proportionality is <em>0.05</em>  (5 percent).

Look at the other points just to check it out and see if it holds water:

x = 1,500
y = 30,000
x/y  =  <u>0.05</u>  yes !

x = 2,000
y = 40,000
x/y  =  <u>0.05</u>  yes !

It checks out. 
The constant of proportionality is <em>5%</em> for all points in this table.


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