Select the correct Answer: for each question.
-The height of a hill (in feet) is given by where x is the distance (in miles) east and y is the distance (in miles) north of your cabin.If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?
A)(a) 570 ft/mi, (b) 690 ft/mi
B)(a) -570 ft/mi, (b) 690 ft/mi
C)(a) 690 ft/mi, (b) 570 ft/mi
D)(a) 690 ft/mi, (b) -570 ft/mi

Question

Select the correct Answer: for each question.
-The height of a hill (in feet) is given by  where x is the distance (in miles) east and y is the distance (in miles) north of your cabin.If you are at a point on the hill 1 mile north and 1 mile east of your cabin, what is the rate of change of the height of the hill (a) in a northerly direction and (b) in an easterly direction?
A)(a) 570 ft/mi, (b) 690 ft/mi 
B)(a) -570 ft/mi, (b) 690 ft/mi 
C)(a) 690 ft/mi, (b) 570 ft/mi 
D)(a) 690 ft/mi, (b) -570 ft/mi

Quizplus · Accepted Answer

1848.0

Select the Correct Answer: for Each Question