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# Unit: Derivatives: definition and basic rules

#### 0

Possible mastery points

The derivative of a function describes the function's instantaneous rate of change at a certain point. Another common interpretation is that the derivative gives us the slope of the line tangent to the function's graph at that point. Learn how we define the derivative using limits. Learn about a bunch of very useful rules (like the power, product, and quotient rules) that help us find derivatives quickly.

## Differentiability

### Practice

#### Quiz 1

Level up on the above skills and collect up to 720 Mastery points

## Combining the power rule with other derivative rules

### Practice

#### Quiz 2

Level up on the above skills and collect up to 640 Mastery points

## Derivatives of tan(x), cot(x), sec(x), and csc(x)

### Practice

#### Quiz 3

Level up on the above skills and collect up to 640 Mastery points
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 2500 Mastery points!