Answer:
The answer is below
Step-by-step explanation:
A linear equation is in the form of y = mx + b, where y is a dependent variable (that is it depends on other variable), x is an independent variable (that is it does not depend on any variable), m is the slope (rate of change) and b is the value of y at x =0
Given that S is salary, n is number of working years. It is given by:
S = 90000 + 3500n
the slope = 3500
The equation means that Sarah's beginning salary is 90000 and the salary increases by 3500 each year
