All vertical lines are parallel to the y-axis and thus parallel to each other. Why would it be incorrect to claim that vertical lines that are parallel have equal slopes?

Respuesta :

All vertical lines are parallel to the y-axis and thus parallel to each other. Why would it be incorrect to claim that vertical lines that are parallel have equal slopes?​

we know that

A vertical line has a slope undefined (the denominator is equal to zero)

therefore

Is incorrect to claim that vertical lines that are parallel have equal slopes, because their slopes are undefined