A production engineer has determined that the total cost to produce 500 tractor tires is $110,000 and producing 600 tractor tires costs $120,000.
a) If tractor tires are the independent variable and the cost is the dependent
variable, what is the slope of the line between the two points? What does the
slope mean in this context?
b) Find a linear model to predict the costs of producing x tractor tires.