Answer:
straight line through the origin
Step-by-step explanation:
you could check in several ways,
like for example
A) an equation in the form y=kx where k is the comtant of proportionality
B)a graph with a straiht line that passes through the origin
C)a set or tavlr shows equivalent ratios
D)a verbal discription that discribes a direct porprotional realtionship