- #1

**Summary::**Use Graph To Investigate Limit

Use the graph to investigate the limit of f(x)

as x tends to 0.

Let me see.

I got to use the graph to investigate the limit of f(x) as x tends to 0 from the left and right.

Let y = f(x).

The given function can also be expressed as f(x) = | x |.

The limit of (-x) as x-->0 from the left is positive infinity.

The limit of (x) as x-->0 from the right is positive infinity.

The limit of f(x) as x-->0 from the left and right at the same time is positive infinity.

Can I say the limit of f(x) is positive infinity?

#### Attachments

Last edited by a moderator: