Answer:
Linear model.
Step-by-step explanation:
Let x be the number of units sold by salesperson.
We have been given that a salesperson earns a base salary of $50,000 plus a commission of $300 for every unit sold. So commission earned for x units will be 300x.
The total amount earned by salesperson after selling x units will be commission for x units plus base salary.
[tex]\text{Total amount earned by salesperson}=300x+50,000[/tex]
We can see that the total income of salesperson is in slope-intercept form: [tex]y=mx+b[/tex], where, m represents slope and b represents y-intercept.
Upon comparing the total income of salesperson with slope-intercept form of equation we can see that 300 is slope and 50,000 is y-intercept, therefore, a linear model will best fits the given situation.
