Question

Frank is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of "English is Fun" he sells. Suppose that x and y are related by the equation y = 90x + 2200.

Answer 1

Frank's total pay is calculated with the linear equation y = 90x + 2200, where 'x' is the number of software copies sold, and 'y' is the total pay including a base salary of $2200.

Step-by-step explanation:

Frank is a software salesman whose total pay (y) is based on the number of copies of "English is Fun" that he sells (x). The equation provided for this scenario is y = 90x + 2200. The number of copies sold (x) is the independent variable, and the total pay (y) is the dependent variable. The term 2200 represents Frank's base salary or the y-intercept of the linear equation, which he receives regardless of sales. The coefficient 90 represents the amount Frank earns per copy of software sold, which is the slope of the line. In summary, the equation shows that for every additional copy of the software sold, Frank's total pay increases by $90.