Question

The distance, d, measured in miles, that Hye drove is d = 45.2t, where t is the time in hours.

Answer 1

Answer:

45.2  is the constant of proportionality

Step-by-step explanation:

Direct proportionality says that:

$y \propto x$ then the equation is in the form of:

$y=kx$, where k is the  constant of proportionality

As per the statement:

The distance, d, measured in miles, that Hye drove is

d = 45.2t,         .....[1]

where,

t is the time in hours.

By definition of direct proportionality:

$d \propto t$

⇒$d= kt$

On comparing with [1] we have;

k = 45.2

Therefore, the constant of proportionality is, 45,2

Answer 2

45.2 is the constant of proportionality.