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mojhsa [17]
4 years ago
7

Radius oa of circle O has a slope of 2.5. What is the slope of the line tangent to circle O at point A?

Mathematics
1 answer:
Oliga [24]4 years ago
3 0

If radius OA has a slope of 2.5, then we can rewrite it as 5/2. Those are equal. Slope is rise over run. Our rise is 5 and our run is 2. If a line is tangent to circle O at point A, it meets point A perpendicular to the radius OA. That means that the slope of the line tangent to the circle at point A has a slope that is the opposite reciprocal. The slope of that line will be -2/5

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