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
