The equation that represents this description is h = 20c + 60 because hours (h) is our dependent variable and cost (c) is our in
dependent variable. Hours (h) is our dependent variable because it depends on how many hours Mr. Z tutors the students. The slope of the function is 20 because that is how much Mr. Z charges to start off. What was this student's mistake? What is the correct equation that represents the description above?
The correct dependent variable for this equation is "c" cost of Mr Z's tutoring. The independent variable is "h" hours of tutoring. This is because the independent variable h hours should determine the cost of tutoring c. Therefore the equation can be interpreted: if there are h hours of tutoring which cost 20 per hour, total cost is equal c. Also slope of the equation is 20, coefficient of h.
