I already did the graph and got it correct, but what is the max and min? And how do I find it?

Part 2 of 3 S The volume of air in a certain climber's lungs (in cubic centimeters) is modeled by the equation V = 450 sin (70xt) + 1000 where t is the time in minutes. a) Graph the function on the interval [0,0.03]. b) Find the maximum and minimum volume of air in the climber's lungs. a) Choose the correct graph