Give IUPAC name for each of the following
`{:(CH_(3)-CH=C-CH_(3)),(" |"),(" "CH_(3)):}`

Explanation

To determine the IUPAC name for the compound given, we will follow these steps:

### Step 1: Identify the longest carbon chain
The compound has a structure that can be represented as CH3-CH=C-CH3 with a methyl group attached to the second carbon. The longest carbon chain contains 4 carbon atoms.

**Hint:** Look for the longest continuous chain of carbon atoms that includes the double bond.

### Step 2: Number the carbon chain
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