Question

is the graph of this equation a horizontal or vertical line?
y = 7
horizontal line vertical line

Explanation:

Step1: Recall line equation forms

Horizontal lines have the form \( y = k \) (constant \( y \), varying \( x \)), vertical lines have \( x = k \) (constant \( x \), varying \( y \)).

Step2: Analyze \( y = 7 \)

The equation \( y = 7 \) has a constant \( y \)-value (7) and \( x \) can be any real number. This matches the horizontal line form \( y = k \).

Answer:

horizontal line