Question

A bird is hunting for fish in a pond. She swoops down from a height and picks up a fish from the water surface and flies back up, all along a path y=4x2−(2k+2)x+1, where,k≥0, y is its height from the water surface, and x is the horizontal distance from a fixed origin which is in the plane of the path. Then, the value of k can be:
3
2
1
5

Answer 1

Step-by-step explanation:

If the object is in rarer medium and the fish is looked from 

the denser medium, we know Normal shift d=(n−1)h, 

where h represents the real depth.

 Again I the question it is given that h=y. 

Therefore apparent depth or the height of the bird from 

the water surface is y+(n−1)y=NY.

Hence the total distance is X+ny.

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Answer 2

Answer:

1

Step-by-step explanation:

Solve with desmos.