Question

. Let D be the domain and let ƒ be the possible function. Determine if the relation is an example of a function. D = x is a date, expressed in day/month/year ƒ(x) = temperature in Seattle Washington on that date

Answer 1

No, the relation is not a function.

Explanation:

We know, 'A function is a relation which maps each point of the domain to a unique image'.

It is given that, the relation is 'f(x) = temperature in Seattle Washington on that date' and the domain is 'x'.

Now, as the temperature does not remain same throughout the day.

So, we get that,

'For the same date, the value of f(x) is not unique'

Thus, the given relation is not a function.