What is the y -intercept of the function f of x is equal to negative 2 ninths x plus 1 third ?
Answer
A
1 third
B
negative 1 third
C
2 ninths
D
negative 2 ninths
Explanation
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.
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