Answer:

Step-by-step explanation:
Given
Cost = $78,600 when Printing Press = 12
Cost = $82,380 when Printing Press = 19
Required
Determine the linear equation
From the given parameters; Cost is a function of Printing Press
<em>Represent Cost by C and Printing press by x;</em>
<em>This implies that C = f(x)</em>
The given parameters can then be modeled as; 


The first step is to calculate the slope, m;




The linear equation can then be calculated using slope formula

Substitute 540 for m and 

Multiply both sides by x - 19


Open bracket

Add 82380 to both sides




Hence;
