Dave graphed the linear function with an x-intercept of 4 and a y-intercept of - 12. Which function did Dave graph?
y=-4x + 12
y = 4x - 12
y=-3x+12
y=3x - 12

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?