Answer:
Step-by-step explanation:
We're discussing direct proportion here. Which of the listed examples have the form y = kx? (k is the constant of proportionality)
y = 0.04x (k = 0.04)
x = y/2 can be rewritten as y = 2x; k = 2
y = -11x
x/y = 9 can be rewritten as 9y = x, or y = (1/9)x
All four of the above display direct proportion.
x - 5 = y does not pass thru the origin; its y-intercept is (0, -5). Not a proportional relationship.
