Ojos del Salado is the highest mountain in Chile, with a peak at about 6,000 meters above sea level. The Atacama Trench, just off the coast of Peru and Chile, is about 8,000 meters below sea level (at its lowest point). What exact elevation is halfway between the peak of Mount Ojos del Salado and the Atacama Trench?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.