The following values of(x) and fy) are given. Find the best value of td yid") at (x-1.5) using forward difference method?
x =1.0 =>f(y) =1.729
x=1.5 =>f(Y)=1.691
X=2=>F(Y)=1.505
X=2.5=>f(y)=1.416
x=3.0=>f(y)=1.311
???

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.