Question

susan earns 13 dollars each hour working part - time at a bookstore. she earns one additional dollar for each book that she sells. let a be the amount (in dollars) that susan earns in an hour if she sells b books. write an equation relating a to b. then graph your equation using the axes below. equation:

Explanation:

Step1: Identify Fixed and Variable Earnings

Susan earns $13 per hour (fixed) and $1 per book sold (variable, \$1 \times B).

Step2: Formulate the Equation

Total earnings \( A \) = fixed earnings + variable earnings. So \( A = 13 + 1 \times B \), which simplifies to \( A = B + 13 \).

Answer:

The equation relating \( A \) to \( B \) is \( A = B + 13 \). For graphing, this is a linear equation with a slope of 1 and a y-intercept (when \( B = 0 \)) of 13. Plot the y-intercept at (0, 13) and use the slope (rise 1, run 1) to draw the line.