Is y=3x non-proportional if so or if not how do you know

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

Write the sentence as an equation. b increased by 281 is d

When only separate discreet points are graphed it is called?