1. How can you tell by looking at each graph that a proportional relationship exists between the quantities?
2. Find the constant of proportionality for each graph. Write your answer as y = kx.
This is USATp please help if you know the answer. And please do it correctly. And if you are a "teacher" don't bash anyone because they're asking for help, please. Thank you.
#1. a sloping straight line through (0,0)
#2. the slope of the line