Line cd contains points a (4, −7) and b (4, 8). the slope of line cd is


Asked by maham237 @ in Mathematics viewed by 449 People

Answered by maham237 @



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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