A group of engineers are considering two different designs for a shower head that both filters and regulates the flow to conserve water. The equation y = 37 represents the water flow of design 1 where x is the number of minutes and y is the number of gallons. The equation y = 3x represents the water flow of design 2. Graph the equations and determine which one of the two designs regulate water flow at a constant rate? Design 1: y = 37 BO! 60 40 2 20 4 N Design 2: y- 3x 80 60 40 20 The equation has a constant rate where as does not have a constant rate. The design that regulates water flow at a constant rate is Design 1 or Design 2 (circle one)