Find the local linear approximation of the function f(x) = √15 + x at x = 10, and use it to approximate √24.9 and √25.1.
deleted. Sorry, i don't knunderstand what you are being asked to do.
I think the following is what is wanted:
Thanks Alan,
I still don't get it but that doesn't matter. (I have a calculator :/)
Hopefully the shadow will understand.
+136 
