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#1 2007-06-12 15:59:23
- sezza
- Guest
Graphs
Find the co-ordinates of any point on the curve y = x^3 + 3x^2 - 7x - 1 where the gradient is the same as that of y = 2x + 3
Can you show steps please?
Im so confused
#2 2007-06-12 17:00:52
- Ricky
- Moderator
- Registered: 2005-12-04
- Posts: 3,791
Re: Graphs
Find the gradient of each function, set them equal, solve for x. I assume you know how to take a derivative?
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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