A graphing calculator is recommended. The curve y = 1 is called a witch of Maria Agnesi. 1 + x2 (a) Find an equation of the tangent line to this curve at the point y = (b) Illustrate part (a) by graphing the curve and the tangent line on the same screen. y y y 2.0 2.0 2.0 1.5 1.5 10 1.0 1,9 0.5 0.5 0.5 -4 -2 -4 -2 4 -4 -2 -0.5 -0.5 -0,5 -1.0 -1.0 -1.0 y 2.0 1.5 0.5 -4 -2 -0.5 -1.0

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