What is the slope of x-axis?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 0
The slope of a line is \(\tan\theta\), where \(\theta\) is the angle the line makes with the positive direction of the x-axis; it measures the rise in \(y\) for every unit of run in \(x\).
The x-axis is horizontal and every point on it has \(y=0\), so there is no rise at all
\(\theta=0^\circ\), so the slope \(=\tan0^\circ=0\)