The proportional relationship is correctly graphed by graph vs.
<h3>What is a proportional relationship?</h3>
A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
In this problem, the relationship that gives the montant M considering the number of items sold n is:
M = 3n.
Considering that the montant is the vertical axis, the graph is composed by points (n, 3n), that is, points (100, 300), (200, 600) and so on, hence the graph is graph vs.
More can be learned about proportional relationships at brainly.com/question/10424180
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