Answer:
The First One
Step-by-step explanation:
Try to substitute x by zero for example
(the minus will gone by zero)
You will get y = +2
and the graph you see the y =+2 !!
I hope that it's a clear solution and explanation.
Every year, the price of the smartphone is the of the price of the previous year (since we lose the , we remain with the ).
Since can be written as , the price after one year will be
After two years, the price is the of the price after one year:
And so on: after three years we have
So, the answer is somewhere between three and four years.
So you would change 4 4/5 to 4 8/10 and then do 4-2=2 and 8/10 - 1/10= 7/10 so the work is 2 7/10