y= -20x + 180 A water tank has been losing water at a constant rate since it was filled yesterday. The function above shows the rate at which the tank is losing water, where x is the number of hours that have passed and y is the number of gallons of water in the tank. What are the x-intercept and y-intercept of the function? a x-intercept = -20, y-intercept = 1 b x-intercept = 1, y-intercept = -20 c x-intercept = 9, y-intercept = 180 d x-intercept = 180, y-intercept = 9