What is the [tex][tex]$y$[/tex][/tex]-intercept of the function [tex][tex]$f(x)=-\frac{2}{9} x+\frac{1}{3}$[/tex][/tex]?

A. [tex][tex]$-\frac{2}{9}$[/tex][/tex]
B. [tex][tex]$-\frac{1}{3}$[/tex][/tex]
C. [tex][tex]$\frac{1}{3}$[/tex][/tex]
D. [tex][tex]$\frac{2}{9}$[/tex][/tex]



Answer :

To find the [tex]\( y \)[/tex]-intercept of the function [tex]\( f(x) = -\frac{2}{9}x + \frac{1}{3} \)[/tex], we need to determine the value of [tex]\( f(x) \)[/tex] when [tex]\( x = 0 \)[/tex]. The [tex]\( y \)[/tex]-intercept is the point where the graph of the function crosses the [tex]\( y \)[/tex]-axis.

Step-by-Step Solution:

1. Start with the given function:
[tex]\[ f(x) = -\frac{2}{9}x + \frac{1}{3} \][/tex]

2. Substitute [tex]\( x = 0 \)[/tex] into the function to find the [tex]\( y \)[/tex]-intercept:
[tex]\[ f(0) = -\frac{2}{9}(0) + \frac{1}{3} \][/tex]

3. Simplify the expression:
[tex]\[ f(0) = 0 + \frac{1}{3} \][/tex]

4. This simplifies to:
[tex]\[ f(0) = \frac{1}{3} \][/tex]

Therefore, the [tex]\( y \)[/tex]-intercept of the function [tex]\( f(x) = -\frac{2}{9}x + \frac{1}{3} \)[/tex] is [tex]\( \frac{1}{3} \)[/tex].

So the correct answer is:
[tex]\[ \frac{1}{3} \][/tex]