Question: vector field and the curve

graph the vector field F and the curve C to guess whether the line integral of F over C is positive or negative or zero. then evaluate the line integral F(x,y) = (x/sqrt(x^2+y^2)i + (y/sqrt(x^2+y^2)j C is the parabola y =1 +x^2 from (-1,2) to (1,2)
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