1. A curve is traced by a point P(x,y) which moves such that its distance from the point A(-1,1) is three times its distance from the point B(2,-1). Determine the equation of the curve. A circle is tangent to the y - axis at y = 3 and has one x - intercept at x = 1. a. Determine the other x- intercept. b. Find the equation of the circle. 2. none that i know of 3. I can't seem to find out how to solve these problems. Is there like a formula that I have to follow? Please explain how to do these problems.