Brian drove 754 miles in 13 hours.
At the same rate, how many miles would he drive in 11 hours?

638 miles because in 11 hours she drove it would be 754/13 which is 58 miles then 58 times 11 which is 638 miles

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.