Name the following alkenes using systematic names

Name the following alkenes using systematic names.

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Concepts and reason
The concept used here is IUPAC nomenclature. It should be used in this question because there are compounds given, which should be named according to IUPAC nomenclature.

Fundamentals
IUPAC (International union of pure and applied chemistry) is an international federation, which associates all the chemists in the countries. This is a worldwide organization that works in chemistry.

Answer:

The numbering of the parent chain is done and the substituents are identified. The IUPAC name of this organic compound is image.

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The numbering of the parent chain is done and the substituents are identified. The IUPAC name of this organic compound is image.

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The IUPAC name of this organic compound is image.
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