Solve the system of equations.
3x + 2y + 4z = 7
4x + 3y + 5z = 9
7x + 4y + 72 = 5
a. (x=-5, y = 3,2 = 4)
b. (x = -6, y = 4,2 = 5)
c. (x = -3, y = 1, 2 = 6)
d. (x=-4, y = 2, 2 = 3)

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.