Question

An airplane travel 780 miles in 4 hours the equation y= 195x models this situation

Part A: what is the constant of proportionality


Part B: what does the constant of proportionality represent?

Answer 1

a) constant of proportionality = 196

b) constant of proportionality represents the speed of the airplane in miles per hour

Explanation:

The proportionality relationship is

y ∝ x where y = distance flown in miles and x is time in hours

This can be modeled as an equation
y = k. x where k is the constant of proportionality

The equation given is y = 195x so 195 is the constant of proportionality , it is basically the speed of the airplane in mph