Question

the depth in inches of an object as it sinks in the river is found by the equation d=0.5t where t is measured in seconds which best describes the constant of proportionality

Answer 1

Given:

Depth in inches of an object as it sinks in the river is found by the equation

$d=0.5t$

where t is measured in seconds.

To find:

The best description for the constant of proportionality.

Solution:

We know that, in the equation $y=kx$, k is the constant of proportionality.

We have,

$d=0.5t$

Here, constant of proportionality is 0.5.

Since, depth (y) in inches and time (t) in seconds, therefore the constant of   proportionality id 0.5 inches per second.