|Jun9-08, 11:15 PM||#1|
The limit as x approaches infinity
1. The problem statement, all variables and given/known data
(3x-2) / (9x+7)
As x approaches infinity.
3. The attempt at a solution
I know the procedure, but am then stuck:
- Plug in infinity for x
Tried breaking it into 3x / (9x+7) - 2 / (9x+7)
The second thing would go to zero.
The first, no clue.
Maybe multiplying the original problem by something? Unsure what.
(Note: This is to help a friend. I myself am going to bed now, but they will be checking for replies. They're not allowed to use L'Hopital's rule, as it wasn't taught)
|Jun9-08, 11:20 PM||#2|
Blog Entries: 14
factor out x from both num and den!
and plug in the infinity value without thinking
|Jun10-08, 11:12 AM||#3|
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