Question

I sold 32 posters for a total of 126. And I sold 48 posters for a total of 240. If the relationship between the number of posters and total earnings as linear what was the cost per print expressed as a slope

Answer 1

The cost per print expressed as a slope is 7.125

Explanation:

To calculate the cost per print, let’s envision that we have a graphical representation of cost of posters against the number of posters

We have the cost on the y-axis and the number of posters on the x axis

With the information given in the question, we shall be having two data points

Point 1 = (32,126)

point 2 = (48,240)

Now to find the slope of the line which is cost per print, we make use of both points in the slope equation.

Mathematically, slope m will be

m = y2-y1/x2-x1

Thus, we have;

m = (240-126)/(48-32)

m = 114/16

m = 7.125

The cost per print expressed as a slope is 7.125