Question

is the graph of this equation a horizontal or vertical line?
x = -3
horizontal line
vertical line

Explanation:

Step1: Recall the general form of horizontal and vertical lines

The equation of a horizontal line is \(y = k\) (where \(k\) is a constant), and for any \(x\) - value, the \(y\) - value is always \(k\). The equation of a vertical line is \(x = h\) (where \(h\) is a constant), and for any \(y\) - value, the \(x\) - value is always \(h\).

Step2: Analyze the given equation \(x=-3\)

In the equation \(x = - 3\), for all real values of \(y\) (i.e., \(y\in R\)), the \(x\) - coordinate is always \(-3\).

Answer:

vertical line