Which of the following is not a security alliance that the US belongs to?
2 answers:
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To find the slope (m), use the slope formula:
and plug in the two points
(4, -4) = (x₁, y₁)
(6, -6) = (x₂, y₂)
[lines usually go from left to right, so the point furthest to the left is the 1st point]
[two negative signs cancel each other out and become positive]
m = -1