3 years ago

At what point on the curve x^2 + y^2 = 9 is the tangent line vertical?

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

x² + y² = 9 is the equation of a circle with center (0, 0) and radius 3.

This puts the vertices at (-3, 0), (3, 0), (0, -3), and (0, 3).

When is the tangent line vertical? <em>when it passes through the x-axis.</em>

Answer: (-3, 0), (3, 0)

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