Final answer:
The correction to Brenda's equation is a subtraction of the fish's descent from its original depth, resulting in a new position of -336 feet.
Step-by-step explanation:
Brenda's equation for the new position of the fish in relation to sea level is incorrect. To find the new position, we need to combine the original depth of the fish at -320 feet with the total descent over 8 seconds. The fish descends 2 feet per second, so in 8 seconds, the fish descends an additional 16 feet.
The correct calculation should be:
-320 feet (starting depth) + (-2 feet/second × 8 seconds) (descent)
-320 feet + (-16 feet) = -336 feet
So, the new position of the fish in relation to sea level is -336 feet, not 336 feet.