Use the given information to write an exponential equation for y.Does the function represent exponential growth or exponential decay? 
,when 
Definitions:
Machine-Hours
A measure of the amount of time machines are run, often used as a base for allocating factory overhead.
Total Job Cost
The cumulative cost of materials, labor, and overhead for a specific job or project.
Job-Order Costing
A cost accounting system that assigns manufacturing costs to an individual product or batch of products, making it possible to track the cost of specific jobs.
Machine-Hours
A measure of production time, used as a basis for allocating manufacturing overhead costs based on the number of hours machines are operated.
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