Calculate $\left. \frac { \partial f } { \partial x } \right| _ { ( 8,7 ) }$

question 61

Short Answer

Calculate $\left. \frac { \partial f } { \partial x } \right| _ { ( 8,7 ) }$ , and $\left. \frac { \partial f } { \partial y } \right| _ { ( 8,7 ) }$ when defined.
​ $f ( x , y ) = 1,120 - 17 x + 19 y + 3 x y$ ​
Enter your answers, separated by a comma.

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Definitions:

Helium

Helium is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table, with the symbol He and atomic number 2.

Oxygen

A chemical element with symbol O and atomic number 8, essential for respiration in living organisms and a component of air.

Neon

A colorless, inert noble gas used in lighting and signs, symbolized as Ne and atomic number 10.

Enriched Uranium

Uranium in which the percentage of the isotope uranium-235 has been increased, typically used as fuel in nuclear reactors and in the manufacture of nuclear weapons.