Practice question · Multiple choice
The same function can be given by a formula, a graph, a table or a description in words. Why do physicists move between the four rather than settling on one?
Hints
- Ask what you would look at to find where a function turns around.
- Then ask what you would use to differentiate it.
Show the answer
D. Because each makes a different property immediately visible
Why
A representation is a tool, not the function. Reading a maximum off a graph and proving it from a formula are the same fact reached by different routes, and each route is cheap for some questions and expensive for others.
Practise Functions, domains, and representations
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