Question

Determine the constant of proportionality of the graph Commission per Sales 1.250 1.000 Commission Earned Sales tin Thousands)

Answer 1

For this case we need to remember that for a line the proportionality constant is given by:

k= y/x

We can select the last point in the graph where x= 5 and y= 1000 and solving for k we got:

k= 1000/5= 200

And our answer would be k=200