Question

What is the slope of the line that passes through the points (-10,4) and (-10,8)

Answer 1

UNDEFINED

Explanation:

m = -y₁ + y₂\-x₁ + x₂ → -4 + 8\-10 + 10

4 0

Obviously, if we see two identical x-coordinates, the rate of change [slope] is AUTOMATICALLY an undefined slope, and also because we can NEVER divide by zero.

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