A car salesperson's annual income depends on the amount of his sales. His annual income is a salary of $11500 plus 12% of his annual sales. Write a linear equation for his annual income for sales of x dollars. ( I = mx + b ).

11500=I
i Don't know what is mx+b is.

2 answers

11500=12x+b
Income=.12*Sales + 11500

m is the slope, in this case .12, x is the amount of sales in dollars