ANSWER
A.
[tex] - \frac{2}{3} [/tex]
EXPLANATION
The given equation is
[tex]y = - \frac{2}{3}x + 3[/tex]
This equation is already in the form:
[tex]y =mx + b[/tex]
This is called the slope-intercept form.
The slope is
[tex]m = - \frac{2}{3} [/tex]
and the y-intercept is 3.
The correct answer is A.
In a situation where the line is not given in the slope intercept form, then you must rewrite in this form before comparing.