A bottlenose dolphin is 10 feet below sea level. Then it begins to dive at a rate of 9 feet per second. What is the equation of the line that represents its elevation, y, after x seconds?

Respuesta :

It's original elevation is -10. Diving at 9 feet per second is the same as a velocity of -9.

This means that the equation of the elevation y is y = -9x - 10

Answer: -9x - 10

Step-by-step explanation: