A bridge is suspended from cables between two towers, each 30 feet high. The height of the
suspension cable above the bridge surface is a
function of distance, d, from the left end of the
bridge with rule: h (d) = 0.01d2-d + 30. What
are the coordinates of the function at its
minimum value?

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.