By t(x, y) = 44/(7 + x2 + y2), where t is measured in °c and x, y in meters. find the rate of change of temperature with respect to distance at the point (3, 3) i

Any scalar multiple of (−3,−2,4) is acceptable. 2. let  f(x,  y)=4x2 +  y2. (a) sketch the level curves of  f(x,  y) = k for k = 2, 4, 8. (b) on your graph from part (a), draw a 1+2x2 +  y2. , where  t  is  measured  in ◦c  andx,  y  are  measured  in  meters.  find  the  rate  of  change  of  temperature  with  respect  to  distance  at thepoint  (2,1) in.

What the heck don’t understand