Find the Requested Partial Derivative A) 6
B) 11
C) 1
D) 9

question 190

Multiple Choice

Find the requested partial derivative.
- $( \partial \mathrm { w } / \partial \mathrm { y } ) _ { \mathrm { X } } \text { at } ( \mathrm { x } , \mathrm { y } , \mathrm { z } , \mathrm { w } ) = ( 1,1,2,14 ) \text { if } \mathrm { w } = 2 \mathrm { x } + 6 \mathrm { y } + 3 \mathrm { z } \text { and } \mathrm { x } + \mathrm { y } = \mathrm { z }$

• A) 6
• B) 11
• C) 1
• D) 9