What is the name of the special point that a line has to pass through in order to be considered proportional

Solution:

In order to be considered proportional , a line must pass through Origin.

Equation of any line passing through origin is given by:

 → y = k x,    k -= Slope of any line passing through origin.

, Considering k as a proportionality constant.

Special Point = Origin (0,0)

he would be able to buy about 7 bags of popcorn.

Step-by-step explanation:

First you would subtract 25 and 10.25 to get  14.75, next you would divide 14.75 by 1.99 to get 7.4 then  you would round to 7.