#### Explicit equation

## What is the formula for a sequence?

A geometric sequence is one in which a term of a sequence is obtained by multiplying the previous term by a constant. It can be described by the formula an=r⋅an−1 a n = r ⋅ a n − 1 .

## What is the formula for a recursive equation?

A recursive sequence is a sequence in which terms are defined using one or more previous terms which are given. If you know the nth term of an arithmetic sequence and you know the common difference , d , you can find the (n+1)th term using the recursive formula an+1=an+d .

## What is explicit function?

An explicit function is a function that is expressed clearly. We usually write explicit functions as one variable in terms of another variable. A simple example of an explicit function is a linear function, such as y = 4x – 7. This function is written as the dependent variable y in terms of the independent variable x.

## What is a common ratio?

more The amount we multiply by each time in a geometric sequence. Example: 1, 2, 4, 8, 16, 32, 64, 128, 256, Each number is 2 times the number before it, so the Common Ratio is 2.

## What is the equation for exponential growth?

Remember that the original exponential formula was y = ab^{x}. You will notice that in these new growth and decay functions, the b value (growth factor) has been replaced either by (1 + r) or by (1 – r). The growth “rate” (r) is determined as b = 1 + r.

## How do you write an equation for an arithmetic sequence?

B . The Rule for an Arithmetic Sequence: a_{n} = a_{1} + (n – 1)da_{n} is the n^{th} term of the sequence.a_{1} is the first term of the sequence.n is the number of terms in the sequence.d is the common difference.Use only the a_{1} and d values to write the rule.

## What is sequence in math?

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence. This sequence differs from (A, R, M, Y).

## What is recursion in math?

Recursive function, in logic and mathematics, a type of function or expression predicating some concept or property of one or more variables, which is specified by a procedure that yields values or instances of that function by repeatedly applying a given relation or routine operation to known values of the function.

## How do you do recursion?

Basic steps of recursive programsInitialize the algorithm. Check to see whether the current value(s) being processed match the base case. Redefine the answer in terms of a smaller or simpler sub-problem or sub-problems.Run the algorithm on the sub-problem.Combine the results in the formulation of the answer.