Khan academy - Exponential growth and decay: Quiz 1

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

What is the quadric regression equation that fits these data