Answer:
Quadrants I and IV only
Step-by-step explanation:
Here,
x represents the time after the experiment began, and
y represents the temperature of the substance at that time.
As at the beginning of the experiment i.e when x=0, the temperature of a substance was -5°C
So, the coordinates of this point will be (0, -5). This will be the starting point of the graph.
As time can not be -ve, so the graph won't be in quadrants 2 and 3. (because in those quadrants x is -ve)
But as temperature can be -ve and this case it starts from -5, so the graph will be only in quadrants 1 and 4
