A change in a function s ____, indicating the vicinity of a root has been located, forms the key element in the computer code for locating roots.
A) name
B) parameters
C) sign
D) data type

Question

Quizplus · Accepted Answer

A change in sign indicates that the function has switched from positive to negative or vice versa, which is a strong indication of the presence of a root in the vicinity. Therefore, the change in sign is the key element used in many numerical methods for root-finding. A change in the sign of a function indicates that a root has been crossed. This is the key element in many root-finding algorithms.

A Change in a Function S ____, Indicating the Vicinity