Question

5.This graph shows the outside temperature (in degrees Celsius) over the course of

12 hours, starting at midnight (x= 0).
Temperature (in degrees Celsius)
Time in hours)
10

Part 1:
a) What is the domain____
b) what does the domain mean in terms of the problem?

Part 2:
a) what is the range?_____
b) what does the range mean in terms of the problem?

Part 3:
a) when is the function decreasing?________
b) what does the decreasing interval mean in terms of the problem?

Answer 1

1a) [0,12]

1b) The graph measures temperatures from hour 0 to hour 12.

2a) [-2,4]

2b) The graph measures temperatures from -2°C to 4°C.

3a) [0,3]

3b) The temperature decreased during hours 0 to 3.

Explanation:

Domain is lowest to highest x values present in a graph, range is lowest to highest y values present in a graph, and decreasing interval is the values at which the graph is decreasing.