5! = 5 × 4! = 5 × 4 × 3! = 5 × 4 × 3 × 2! = 5 × 4 × 3 × 2 × 1
The Fibonacci sequence is also a recursive function, defined as follows:
On Test Day, you may be asked to find specific terms in a sequence using recursive definitions.
A parametric function is a function where two coordinates are defined through two separate
nonparametric functions of a third value. Most often, parametric functions are used to describe
position (in terms of x and y) in time (t).
Velocity can be found using the formula .
Speed can be found using the formula .
For example:
An object moving with constant velocity is at point G(4,2) when time t = 0 seconds and at point
H(−8,11) when t = 4 seconds.
In 4 seconds, the object moves (−8,11) − (4,2) = (−12,9) units. In 1 second, it moves