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why is a relation not a function

Monthly search volume and cost-per-click data for "why is a relation not a function" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=why+is+a+relation+not+a+function&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-12 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
is the relation a function 880 $0 11/20
relations is not a function 480 $0 10/20
can you have a relation that is not a function 30 $0 14/20
a relation is not a function if 20 $0 14/20
how to tell if a relation is not a function 20 $0 12/20
algebra 1 functions and relations 20 $0 9/20
relation function or not 20 $0 9/20
how to determine the relation of a function 20 $0 8/20
what is function and relation in math 20 $0 8/20
graph a relation that is not a function 10 $0 10/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=why+is+a+relation+not+a+function&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt