1103171401

SubArea: 
Linear functions
Level: 
B
Project ID: 
1103171401
Accepted: 
1
Clonable: 
0
Easy: 
1
There are graphs of three linear functions in the picture. Choose the formula which corresponds to all three functions.
y=m; m∈R−
y=m; m∈R+
y=mx; m∈R∖{0}
y=x+m; m∈R−