Respuesta :
Answer:
X-axis.
Step-by-step explanation:
Givens
- We have point which coordinates are (a,b)
- The value of a is negative.
- The value of b is zero.
Now, remember that all coordinates with the form (a,0), represents points on the x-axis, because the y-coordinate is zero.
In this case, we have negative horizontal coordinates and a null vertical coordinate, like (-a,0).
This points is on the x-axis, because y-value is null. Actually, it's on the negative part of x-axis, because its horizontal coordinate is negative.
Therefore, the right answer is x-axis.