Hey there...
Thats easy
Reflection across the x axis means it is a Vertical reflection.
the correct choice is c
Answer:
1.4
Step-by-step explanation:
8-1 = 7 and 7/5 = 1.4
∂t/∂x = -46x/(8 +x² +y²)²
∂t/∂y = -46y/(8 +x² +y²)²
At (x, y) = (1, 1)
.. ∂t/∂x = -46/100
.. ∂t/∂y = -46/100