Unit 4 Functions Review

The table below shows the temperature, T, in Tucson, Arizona t hours after midnight.

What was the average rate of change in temperature from midnight until 3 a.m.?

The table below shows the temperature, T, in Tucson, Arizona t hours after midnight.

What was the average rate of change in temperature from 3 a.m. until 4 a.m.?

Is the relation a function:

The assignment of students to locker numbers.

Is the relation a function:

Input: (State) Output: (City)

Is the relation a function?

Is the relation a function?

Is the relation a function?

Function W gives a kitten's weight, in ounces, as a function of time, in weeks, since birth.

What does W(2)=8 represent?

Function T gives a toddler's height, in inches, as a function of time, in months, since birth.

What does T(20)=31 represent?

At noon, a news organization published a piece of breaking news on its website. The function Q gives the number of visitors, in thousands, to the website h hours after the news was published.

Which statement in function notation correctly represents that at 2:30 p.m. the news article had been viewed by 1.6 million visitors.