Question

A house painter worked on painting a room continuously for 5 hours.The graph shows the remaining percentage of the room that needs to be painted as a linear function of x, the time in Horus Which answer choice best describes the domain and range for this situation?

Answer 1

The domain is the set of all possible input values. The values of x represent the domain. The range is the set of all possible output values.

Looking at the graph, the lowest value for the domain is the point on the x axis which corresponds to the starting of the line while the highest value for the domain is the point on the x axis which corresponds to the ending of the line. Therefore, domain is all real numbers greater than or equal to 0 and lesser than or equal to 5

Also, the lowest value for the range is the point on the y axis which corresponds to the starting of the line while the highest value for the domain is the point on the y axis which corresponds to the ending of the line. Therefore, range is all real numbers greater than or equal to 0 and lesser than or equal to 100