can you help with parts c and d?

Two stoves are located 21 feet apart, one giving out 4 times as much heat as the other. If you stand at a point on the line between the stoves at a distance x from the less powerful stove, the temperature of the air is given by H(x)=100 + % + L02. x (21X) Assume you move back an forth between the two stoves, always at least 4 ft from either stove. (a) Assume you wish to determine the maximum and minimum temperatures you would experience. The domain to study for the function H(X) would be 21 (b) There is one critical number for the function on the domain in (a) and it is \"(13) (c) The maximum temperature you would experience is max = |:| X (d) The minimum temperature you would experience is min = |:| X