Question

A diver starts out at 442 feet below the surface (or -442 feet). She then swims upward 207 feet. Use a signed

number to represent the diver's current depth.

Answer 1

So, the diver's final position is -235 feet, which means she is 235 feet below the surface.

Explanation:

To represent the diver's position, we can use a signed number line.

Starting position: -442 feet (below the surface)

Swims upward: +207 feet

Now, we can add these two values to determine the diver's final position:

-442 (starting position) + 207 (swims upward) = -235 feet

So, the diver's final position is -235 feet, which means she is 235 feet below the surface.