The segment of the graph that indicates no change in the passenger load is B.
How to interprete of linear graph.
That segment of the linear graph is parallel to the x-axis, it means that the values of load factor are constant over that months of year. In other words, as you move along that specific portion of the graph from left to right, the corresponding passenger load factor-values do not change—they remain the same.
This is because for a line parallel to the x-axis, the slope m is zero.
In the equation y = mx + b , if m is zero, the term mx becomes zero, and we will have b left with y = b, where b is the y-intercept.
Though the month of year is changing but the quantity of passenger load factor remains unchanged.
So, the segment of the graph that indicates no change in the passenger load factor is B.
Complete question