True or false? the length of time on the desk is a function of the temperature of the coffeewhich the longer coffee sits on a desk, the cooler it becomes

The ordered pair given in the bottom row can be written  f(9) = 5

Step-by-step explanation:

* I have added screenshot of the complete question as well as

 the diagram

- Function is a relation between x and y, where x has only one

 value of y

- The function notation is f(x) = y , where x is the input and y is

  the output

# Ex: If {(2 , 3) , (10 , -5)} is a function , then it can be written using the

 function notation  f (2) = 3 , f (10) = -5

- We can write any table of function using the function notation

* Lets solve the problem

From the table of the function

∵ x = 2 and f (x) = 6

By using function notation

∴ f (2) = 6

∵ x = 7 and f (x) = 3

By using function notation

∴ f (7) = 3

∵ x = 9 and f(x) = 5

By using function notation

∴ f (9) = 5

∴ The ordered pair given in the bottom row can be written f(9) = 5