Reference no: EM131008927
1. Find the equation of the tangent line to the curve y = x2 at x = 1.
This line is also tangent to a circle with center (18, 0) at x = 4. Find the equation of this circle.
2. Consider the curve defined by x2 + y2 - 3x + 13y = 13.
(a) Find dy/dx
(b) Under what condition on x is the tangent line to the curve horizontal?
(c) Under what condition on y is the tangent line to the curve vertical?
3. Consider the curve given by y = x/ (y + b).
(a) Find the slope of the tangent line to the curve at the point (0, 0). Your answer will have b in it.
(b) Find the equation of the tangent line to the curve at the point (0, 0). Your answer will have b in it.
4. You are given the circle, x2 + y2 = 25.
(a) At what two points is x = 4?
(b) Find the equation of the tangent line to the circle at Point A.
5. Find the slope of the tangent line to the curve at the point (-1, 2). Give an exact value.
x3 + 5x2y + 2y2 = 4y +9.
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