Answer:
The graph representing the above equation is attached below.
Step-by-step explanation:
The equation that modeled the average number of non-defective refrigerators produced per hour in terms of x, the number of hours of production per day is:

Simplify the expression as follows:


The graph representing the above equation is attached below.
On moving the pointer to <em>y</em> = 15, it was determined that the value of <em>x</em> was 10.89.
The point is also plotted on the graph