As a salesperson, you receive a monthly salary of $2000, plus a commission of 7% of sales. You receive an offer for a new job at $2300 per month, plus a commission of 5% of sales.
(a) Write a linear equation for your current monthly wage W1 in terms of your monthly sales S.
(b) Write a linear equation for the monthly wage W2 of your new job offer in terms of the monthly sales S.
(c) Use a graphing utility to graph both equations in the same viewing window. Find the point of intersection. What does the point of intersection represent?
(d) You expect sales of $20,000 per month. Should you change jobs? Explain.