Which is the graph of the sequence defined by the function f(x) = 100(0.5)^x-1

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.

Find the value of the variable and the length of each secant segment.

Sum is 17 and their difference is 3