Answer:
The top one is refraction
Refraction is the bending or change in angle of light
Hope this helps (sorry I don’t have the answer to the second question)
E. Populations refers to all members of a group
If

, then you can find partial derivatives:

.
At point A(-3,2,5) (this is the point which lies on the surface, because

) these derivatives have values:

-- the slopes at x and y- directions, respectively.
Answer:
slope =-1/14
Step-by-step explanation:
slope =(y1-y2)/(x1-x2)
slope=(1-2)/(-3--17)
slope=-1/14