For what value of $c$ will the circle with equation $x^2 + 6x + y^2 - 4y + c = 0$ have a radius of length 4?
Question:
For what value of $c$ will the circle with equation $x^2 + 6x + y^2 - 4y + c = 0$ have a radius of length 4?
Answer:
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For what value of $c$ will the circle with equation $x^2 + 6x + y^2 - 4y + c = 0$ have a radius of length 4?
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