Question

In order to know that a graph shows a proportional relationship WITHOUT finding any y/x ratios or doing division, two conditions must be met. Name ONE of the two ways you know a graph is proportional JUST BY LOOKING AT IT. (You will come across another question that asks you to name the other condition, if you haven't already.) (10 points) please help​

Answer 1

I wish I've known, but try using Symbo-Lab or Math-Way. They help a lot.

Explanation: