Question

What is a rate?

Answer 1

A rate is how quickly something happens.

Explanation:

A rate is how quickly something happens with respect to another variable, such as `"time"` or `x`.

If something is moving at a quick rate, it is covering many meters for every second. Second is a unit of time, so motion is to do with rates relevant to time.

You can also have a rate of change, which can be any rate, not necessarily to do with time.

For example, a gradient of a graph is how quickly `y` changes with relevance to `x`. A steep gradient means there is a lot of change in `y` for every `x`, while a shallow gradient means that `y` does not change much for one `x`.