Question

What is the slope of a line that is parallel to the x-axis? m=

what is the slope of a line that is perpendicular to the x-axis? m=

what is the slope of a line that is parallel to the y-axis? m=

what is the slope of a line that is perpendicular to the y-axis? m=

Answer 1

Line parallel to the x-axis: m=0
Line perpendicular to the x-axis: m=undefined
Line parallel to the y-axis: m=undefined
Line perpendicular to the y-axis: m=0