which situations represent linear functions? check all that apply.
a. the temperature rises and falls over the course of a day temperature as a function of time.
B. a baseball is hit into the Outfield the height of the ball is a function of time.
c. A car goes 55 miles per hour on the highway distance as a function of time
d. A child go to inches this year and one in last year height as a function of time.
e. A movie director makes two movies per year. The number of movies is a function of the years.
