The given inequality is \( 4 \leq x < 6 \). This means:
- \( x \) can be equal to 4 (indicating a closed circle at 4) and goes up to, but does not include, 6 (indicating an open circle at 6).
Thus, we are looking for a graph that includes a closed circle at 4 (indicating that 4 is part of the solution) and an open circle at 6 (indicating that 6 is not part of the solution). The region between these two points should be shaded.
Based on the provided options, the correct graph representation of the inequality \( 4 \leq x < 6 \) is:
A. An infinite number line, labeled from negative 6 to 6 with tick marks in increments of 1. There is one shaded region starting at 4 with a closed circle and stopping at 6 with an open circle.
Final answer: A.