Question

sarahs receives a base salary of $4,000 each month. in addition, she earns a commission of $50 for each unit of product she sells. if $x$ represents the number of units sold in a month, which linear function models sarahs total monthly salary?
$y = 4,000x+50$
$y = 4,000 - 50x$
$y = 50x + 4,000$
$y = 4,000+50$

Explanation:

Step1: Identify components of salary

Base - salary is $4000$ and commission per unit is $50$. Let $x$ be the number of units sold.

Step2: Form linear - function

Total salary $y$ is the sum of base - salary and commission. Commission is $50x$ (since $50$ per unit and $x$ units). So, $y = 50x+4000$.

Answer:

$y = 50x + 4000$