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Line N passes through the points (–1, 4) and (–1, –4). 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 passes through the points (–1, 4) and (–1, –4). 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…
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Line N passes through the points (–1, 4) and (–1, –4). 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.

User Andy Shea
by
8.7k points

2 Answers

5 votes

Answer:

A is the answer

line n is vertical line with an undefind slope.

Explanation:

User Frank Fu
by
8.7k points
2 votes

\bf \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &&(~{{ -1}} &,&{{4}}~) % (c,d) &&(~{{ -1}} &,&{{ -4}}~) \end{array} \\\\\\ % slope = m slope \implies \cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{-4-4}{-1-(-1)}\implies \cfrac{-4-4}{-1+1}\implies \stackrel{und efined}{\cfrac{-8}{0}}

check the picture below.
Line N passes through the points (–1, 4) and (–1, –4). Which is true of line N? Line-example-1
User Jgabrielfaria
by
7.9k points
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