Calculate $\frac { \partial ^ { 2 } f } { \partial y ^ { 2 } }$

question 64

Short Answer

Calculate $\frac { \partial ^ { 2 } f } { \partial y ^ { 2 } }$ , $\frac { \partial ^ { 2 } f } { \partial x y }$ and evaluate each at $( 8,8 )$ .
​ $f ( x , y ) = 1,070 - 20 x + 11 y + 9 x y$ ​
Enter your answers, separated by a comma.

---

Definitions:

Anaphylactic Shock

A severe, potentially life-threatening allergic reaction that can occur rapidly, leading to symptoms such as difficulty breathing, swelling, and drop in blood pressure.

Hypertension

A medical condition characterized by persistently high blood pressure.

Meditation

A practice where an individual uses technique, such as mindfulness or focusing the mind on a particular object, thought, or activity, to train attention and awareness, and achieve a mentally clear and emotionally calm and stable state.

Physiological Response

The automatic reactions of the body to a stimulus, such as an increase in heart rate in response to stress.