Solution:
<u>The y-intercept of a line:</u>
- Is a point that the line intersects at the y-axis.
Option A:
The y-intercept (<u>intersecting point on the y-axis</u>) of this line is -1/2.
Thus, Option A is <u>correct.</u>
Option B:
The y-intercept (<u>intersecting point on the y-axis</u>) of this line is 0.
Thus, Option B is <u>incorrect.</u>
Option C:
The y-intercept <u>(intersecting point on the y-axis)</u> of this line is 1.
Thus, Option C is <u>incorrect.</u>
<u>In conclusion...</u>
Option A is correct.