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Test Prep
6.
In the 2 x 2 matrix below, b, and be are the costs per
pound of bok choy (Chinese greens) at Market 1 and
Market 2, respectively; 11 and r2 are the costs per
pound of rice flour at these 2 markets, respectively. In
the following matrix product, what does q represent?

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.