Select the choice that represents a quadratic functiona) y=3x+1b) y^2= x^2-5c) y= 2x^2d) y= x^3 + 4x^2-4

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?