A graphing calculator is recommended. For the function, do the following. f(x)=32-3x from x = 1 to x = 2 (a) Integrate ("by hand") to find the area under the curve between the given x-values. square units (b) Verify your answer to part (a) by having your calculator graph the function and find the area (using a comman FnInt or ff(x)dx.) square units