Find the arc length of the semicircle. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 11 for \piπpi and enter your answer

The table shows values for functions f(x) and g(x) . x f(x)=−4x−3 g(x)=−3x+1+2 −3 9 179 −2 5 53 −1 1 1 0 −3 −1 1 −7 −7 2 −11 −25 3 −15 −79 what is the solution to f(x)=g(x) ? select each correct answer.