continuous at X = 1. #4 Find an equation of the tangent line at "(1,1) on the curve y++xy=x²³x+2. (20 points) (20 points) #5 use the definition of limit to find f'(x) (im fcath)-f(a) if f(x)=x²+x. h00 and graph f(x) = 3x+2, (25 points) 2X-4