Final answer:
The relationship between mAs and the number of x-rays produced is directly proportional.
Step-by-step explanation:
The relationship between mAs (milliamperes per second) and the number of x-rays produced is that they are directly proportional.
As the mAs increases, the number of x-rays produced also increases. This is because the mAs determines the current flowing through the x-ray tube and the number of electrons produced, which in turn determines the number of x-ray photons generated.
For example, if the mAs is doubled, the number of x-rays produced will also double.