Which is the definition of a line segment?

a. a figure formed by two rays that share a common endpoint
b. the set of all points in a plane that are a given distance away from a given point
c. a part of a line that has one endpoint and extends indefinitely in one direction
d. a part of a line that has two endpoints

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is 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 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

What is negative 3/9 times negative 2/8 ?

Apasta salad was chilled in the refrigerator at 35° f overnight for 9 hours. the temperature of the pasta dish dropped from 86° f to 38° f. what was the average rate of cooling per hour?