There are no directions given with this Problem. However presuming that it needs to graphed, proceed as follows.

y= 2Sin (4x+π)-1 is a sinusoidal function. Rewrite it as y= 2 Sin 4(x+π/4) -1. Compare this with the standard form of a Sinusoidal function y=A Sin (2π/B) (x-C) +D

Its amplitude is A=2, Period is B=2π/4 , that is π/2, Horizontal shift C= –π/4 and Vertical shift D= -1. It can be graphed as follows

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