Ajay S. answered • 04/15/20

Algebra 1 Tutor of Several Years that Delivers Results

For this question, we need to find the slope of the equation to see if costs are increasing or decreasing.

**slope = rise/run = change in y / change in x**

In this case, x represents the number of electronic parts and y represents the total cost.

So, slope =

(89,170 - 88,260) / (870-860)

910 / 10

$91 per item.

Because the slope is positive, costs are __increasing at a rate of $91 per item.__