What is the y -intercept of the function f of x is equal to negative 2 ninths x plus 1 third ?

The y-intercept is the value of the function when x = 0. In f(x) = −(2/9)x + 1/3, setting x = 0 makes the x-term 0, so f(0) = 1/3. The y-intercept is 1/3, which is choice B.

AI-written and checked against the verified answer.