I believe it is the first one sorry if I am wrong
I hope this picture helps you!
M or the slope has to be constant throughout the graph. This is because in order for a line to be linear it has to be increasing or decreasing at the same rate. So it the slope was 2 from point x 1 -2 then the slope changed to 1 from 3-4 it would not be linear. :)
Answer:
your answer is H
Step-by-step explanation:
