To maximize learning, a should be presented on a(n) schedule.

To maximize learning, a CS + UCS should be presented on a(n) continuous schedule.

In here, CS means conditional stimulus while UCS is the unconditioned stimulus. Taking for example, let us imagine that the smell of food is the unconditioned stimulus, the feeling of hunger in response to that specific smell is a unconditioned response, and then the sound of the whistle is the conditioned stimulus.

the image of (6, 9) under a dilation is (4, 6). the scale factor is