On the right, you see the graphs of six datasets (in red) with labels f1f6 as well as the visualization of six spectra (in blue and magenta you see the absolute value and the real part of the coefficients, respectively their imaginary parts are allzero here) with labels sp1sp6. For each f*, find the matching sp* and prepare a good explanation for why they match (under the Fourier transform).

f1 sp1 ah f2 sp2 f3 sp3 f4 sp4 f5 sp5 f6 sp6 f1 sp1 ah f2 sp2 f3 sp3 f4 sp4 f5 sp5 f6 sp6