What is the slope of the line y = 3?
(a) undefined, (b) 0, (c) −3, (d) 3
The slope of any line is the inclination of the given line with respect to the x-axis.
Answer: The slope of the line y = 3 is equal to 0.
Let us proceed step by step.
From the given data, y = 3.
As we know that y = mx + c is a standard equation for a straight line.
Where 'm' is the slope and 'c' is the intercept on the y axis.
On comparing the standard equation of the straight line with equation (1), we get
m = 0 and c = 3
y = 3 is the equation of a horizontal line. So there is no change in the y coordinate and hence the slope is zero.