Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-7 Sequences and Functions - Practice and Problem-Solving Exercises - Page 278: 45

Answer

A(n) = A(n - 1) + 1 ; A(1) = 4

Work Step by Step

The formula for a recursive expression is A(n) = (n - 1) + c (c represents the common difference) All of the missing pieces in this equation are provided in the explicit equation in the question where the c value is the d value in the explicit equation and A(1) is listed before (n - 1). C = 1 A(1) = 4 After we plug this in the explicit expression, we get the formula A(n) = A(n - 1) 1 ; A(1) = 4
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