Suppose a house costs $270,000 appreciates by 5% each year. In about how many years will the house be worth $350000?
1 answer:
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Take a look at the function 
. You can simplify it to 
. If x=0, then y=2 and when y=0, x=3. You obtain two points (0,2) and (3,0) that lie on the line .
Since
, the line should belong to the shaded area.
Now take point (0,0). Since
, you can conclude that point (0,0) belongs to the shaded area.Using all these thoughts, you can make a conclusion that the correct choice is B.
Since
Now take point (0,0). Since