(1 point) The sum [, made+ ( 's(a)do- f(a)da can be written as a single integral in the form f(x) dx a Determine a and b. a = b =Consider the graph of the function g(x): -2 y = g(x) 0 4 7 x The graph from a = 2 to x = 6 is a semicircle. Evaluate the following integrals by interpreting them in terms of areas: (b) / g(x) da =