Mathematics
Alejandro680
4

Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is

+0
(1) Answers
Peick965

Given two points; A(x₁,y₁) and B(x₂,y₂) the slope "m" is: m=(y₂-y₂)/(x₂-x₁)   or   m=(y₁-y₂)/(x₁-x₂) In this case: A(4,-7) B(4,8) m=(-7-8) / (4-4)=-15/0  because we have "0" in the denominator the line is vertical, and its slope is indefinitely. 

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