Which of these graphs represents a proportional relationship?
please help me

Reason:
Direct proportion equations are straight lines that go through the origin.
Choices A through C are straight lines, but they don't go through the origin. Luckily, choice D fits both criteria mentioned above.
[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
Same reason as him.