What is the slope of the line y = 3?
(a) undefined, (b) 0, (c) -3, (d) 3

Solution:

The slope of any line is the inclination of the given line with respect to the x-axis.

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.

Therefore, the slope of the line y = 3 is equal to 0.]

What is the slope of the line y = 3?

Summary:

The slope of the line y = 3 is equal to 0.