The equation for the data represented in the table and graph is numbers of hours X1 $125 per hour. Total cost which of the following describes half of the graph and the equation are related.

The relationship between the equation and half of the graph can be seen by analyzing the data points.

In this case, since the equation is X1 $125 per hour, the total cost will depend on the number of hours worked. As the number of hours increases, so does the total cost. This relationship is reflected in the graph as a positive slope, with the total cost increasing as the number of hours increases.

Considering half of the graph, we can see that the cost increases linearly as the number of hours doubles. This means that for every additional hour worked, the total cost increases by $125. This relationship is captured in the equation as X1 $125 per hour, indicating that for each hour worked, the cost increases by $125.

Therefore, half of the graph and the equation are related by the fact that the total cost increases by $125 for every additional hour worked, reflecting the linear relationship between the two.