At 5: 00 p. m., antonio turned on the oven. while the oven preheated, the temperature in the oven increased from 72°f to 400°f over a 10-minute period. the oven remained at 400°f for 45 minutes until antonio turned it off. it took 60 minutes for the temperature in the oven to cool, returning to 72°f at 6: 55 p. m. which statement best explains whether or not the temperature in the oven is a function of the time?

a. it is a function because at any given time the oven was exactly one temperature. b. it is a function because the oven temperature was the same at different times. c. it is not a function because at any given time the oven was exactly one temperature. d. it is not a function because the oven temperature was the same at different times.

The correct option is:

A. It is a function because at any given time the oven was exactly one temperature.

It is given that:

At 5:00 p.m., Antonio turned on the oven.

 The oven remained at 400°F for 45 minutes until Antonio turned it off.

It took 60 minutes for the temperature in the oven to cool, returning to 72°F at 6:55 p.m.

The statement that best explains whether the temperature in the oven is a function of the time or not is:

A.  It is a function because at any given time the oven was exactly one temperature.

( Since the definition of function states that there is a unique image corresponding to a element hence here the temperature at a given time is unique)

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

step-by-step explanation: