which of the following can be the value of x so that the ordered pair (x, -9) is located in Quadrant IV?

In Quadrant IV, the x-coordinate is positive and the y-coordinate is negative.

Therefore, for the ordered pair (x, -9) to be located in Quadrant IV, the x-coordinate must be positive.

Thus, any positive value of x can be the value for the ordered pair to be located in Quadrant IV.