The relation shown below represents the temperature, in degrees Celsius, of the air a certain number of hours after noon on a winter day. Is the temperature a function of time? Explain. (2. - 1). (1,-6), (6, -3), (4, - 7)
Let
x ------> the number of hours after noon
y -----> the temprature in degrees Celsius
we have the relation
(2. - 1). (1,-6), (6, -3), (4, - 7)
In the data set above, we have that for one value of x, there is only one value of y
That means
The relation represent a function
therefore
