Wednesday
October 22, 2014

Homework Help: Calculus

Posted by Judy on Tuesday, September 25, 2007 at 3:04pm.

The point P(4,2) lies on the curve y=x^1/2

If Q is the point (x,x^1/2) use your calculator to find the slope of the secant line PQ for the following values of X:
1)3.5
2)3.9
3)3.99
4)3.999
5)4.5
6)4.1
7)4.01
8)4.001

i plugged these points into the intial equation and got that it was approaching 2. and i made it the slope of secant. however, my friend got a different answer; she found the slope using delta y over delta x. who is right and why?

thanks for any help!

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