Which number is farthest from 1 in the number line? A √1.2

B √1.3

C √1.4

D √1.5

The answer is D, the square root of 1.5 is 1.22 which is the farthest from the number line.

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.