Question

A naval engineer uses the function, P. to analyze the effects of water pressure on submarines. The

function P(d) measures the pressure exerted by water, where d represents the depth of water in
meters. Which of the following would be a possible domain?

Answer 1

The domain of a function is the possible input values, the function can take.

The possible domain is:

The domain of the function is the set of possible values of d.

Because d represents the depth of water,

The starting value can take any value, less than 0

But the end value must be 0 (i.e. the surface of water)

This means that, the domain of the function will be from negative infinity to 0

Hence, the domain is (-infinity, 0}

Explanation: