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12-48.
  1. A circle with its center on the line y = 3x in the first quadrant is tangent to the y‑axis. 12-48 HW eTool (Desmos). Desmos Accessibility Homework Help ✎

    1. If the radius is 2, what is the equation of the circle?

    2. If the radius is 3, what is the equation of the circle?

What point on the line y = 3x is 2 units from the y-axis?

Use the coordinates of the center and the radius to write an equation in general form.

See part (a).

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