A Graph of a Flexible Budget Formula Reflects Fixed Costs

A graph of a flexible budget formula reflects fixed costs of $30,000 and total costs of $90,000 at a volume of 6,000 units. Assuming the relevant range is 1,000 to 12,000 units, the graph would reflect total costs at 10,000 units of what dollar amount?

A) $100,000
B) $130,000
C) $180,000
D) $160,000