Question

from $x = c$ to $x = \infty$?
answer
it is positive and increasing
it is positive and decreasing
it is negative and increasing
it is negative and decreasing

Explanation:

Step1: Analyze the sign of the function

From \(x = c\) to \(x=\infty\), the \(y -\)values of the function are above the \(x -\)axis. So the function is positive in this interval.

Step2: Analyze the trend of the function

As \(x\) increases from \(x = c\) to \(x=\infty\), the \(y -\)values of the function are getting larger. So the function is increasing in this interval.

Answer:

It is positive and increasing