Question

is the graph of this equation a horizontal or vertical line?
x = 0
horizontal line vertical line

Explanation:

Step1: Recall line equations

Vertical lines have the form \( x = a \) (constant \( x \)-value), horizontal lines have \( y = b \) (constant \( y \)-value).

Step2: Analyze \( x = 0 \)

The equation \( x = 0 \) has a constant \( x \)-value (0), so it matches the vertical line form.

Answer:

vertical line