Question

just a general question. How do i find the one sided limit as x approaches 0 algebraically?

Answer 1

Trace the graph /curve from the side of interest

Answer 2

plug in numbers closer and closer to zero and see what they tend towards; algebraically there are deltas and epsilons to contend with

Answer 3

\[\lim_{b->a}\frac{f(b)-f(a)}{b-a}\]

Answer 4

or some such definition

Answer 5

:( im still lost... here's the question \[\lim_{x \rightarrow -2+} (x/x+1)(2x+5)/(x^2+ x)\] supposd to find the limit algebraically. There is no graph.

Answer 6

18/(6)=3

Answer 7

1

Answer 8

\[\lim_{x \rightarrow -2+} (x/x+1)(2x+5)/(x^2+ x) = 1\]

Answer 9

http://www.wolframalpha.com/input/?i=%5Clim_ {x+%5Crightarrow+-2%2B}+%28x%2Fx%2B1%29%282x%2B5%29%2F%28x^2%2B+x%29