Question

could someone explain to me what intervals are in algebra? how would i know if it is positive, increasing, negative, or decreasing?

Answer 1

Answer:

Interval positive and negative

The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. ... y-values that are on the x-axis are neither positive nor negative.

Step-by-step explanation: