Answer
The slope equals to 3.
Work Step by Step
As he can purchase 3 fish for 1 coconut, the slope is:$\frac{3}{1}=3$
(The geometrical slope of the line is $-3$)
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.