A scientist performed an experiment with a radioactive substance whose half-life is 22 min. The scientist will sketch a graph of the situation, where x represents the time since the scientist first measured the substance, and y represents the amount of radioactive substance remaining at that time.

The scientist will only sketch the graph in the quadrant or quadrants for which it makes sense to.

In which quadrant or quadrants will the scientist sketch the graph?



Responses

Quadrants I, II, III, and IV
Quadrants I comma I I comma I I I comma and I V

Quadrant I only
Quadrant I only

Quadrants I and IVonly
Quadrants I and , I V, only

Quadrants I and IIonly

Quadrant I only