Question

Let z=sqrt(x+y) Then


The rate of change in z at (5,5) as we change x but hold y fixed is___


The rate of change in z at (5,5) as we change y but hold X fixed is
___

Answer 1

take the partial with respect to x to answer the first one
and then the partial with respect to y to answer the second one
do you have any questions about taking partial derivatives?

Answer 2

Ze othor of ze qveschin haz dizapiared