# math

Which statement is true?
A. All vertical lines have a slope of zero.
B. All vertical lines have a slope positive slope.
C. All vertical lines have a negative slope.
D. All vertical lines have a undefined slope.
WHY?

1. 👍 0
2. 👎 0
3. 👁 173

m = Y/X = Y/0 = Infinite = Undefined.

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2. 👎 0
2. j

1. 👍 0
2. 👎 0

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