Question

what do you know about points on the line x = 4? the points on the line all have? of 4. options: an x - coordinate, a y - coordinate

Explanation:

In a coordinate system, for a vertical line \(x = k\) (where \(k\) is a constant), every point on that line has the same \(x\)-value. Here, the line is \(x = 4\), so we focus on the \(x\)-coordinate property.

Answer:

an \(x\)-coordinate