Answer:
line N is vertical with undefined slope
Explanation:
Line N passes through the points (–1, 4) and (–1, –4).
A coordinate plane.
Which is true of line N?
Line N is a vertical line with an undefined slope.
Line N is a vertical line with a slope of zero.
Line N is a horizontal line with an undefined slope.
Line N is a horizontal line with a slope of zero.