Question

After watching some fish 55 feet below the surface of the water, a scuba diver went up 20 feet to explore a coral reef. Use a number line to help you create an equation that shows the location of the coral reef in relation to the water's surface? interpret the sum in the context of the problem

Answer 1

Option A

The diver was 55feet below the water surface, this is translated to -55 feet since he is below the water surface. Movement down away from the sea surface will be negative but since he moves up to inspect a coral reefm moving up is positive. so it is +20feet in translation

on the numberline = -55+20= -35 feet

so the coral reef is -35 feet above the water surface

A