Can someone help. it's precal. Someone that actually know the answer this time

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

What is the volume of this container?