Astudy was done to investigate the relationship between outdoor temperature and the amount of fluids an outdoor athlete drinks per day. the correlating linear model is shown below, where x represents the number of degrees over 80°f, and y represents the amount of fluids drank (in liters). interpret the y-intercept. y = 3.85 + 0.55x a. an athlete drinks 7 l per day when the temperature is 80°f. b. an athlete drinks 4.4 l per day when the temperature is 80°f. c. an athlete drinks 3.85 l per day when the temperature is 80°f. d. an athlete drinks 0.55 l per day when the temperature is 80°f.

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.