What number best represents the temperature in anchorage alaska of below 12 degrees

To answer this question, you
would need to understand that if it is a temperature below 12°, this is below 0° making it a negative value. You would show this as -12°.

X=3 and y=4 is the answer

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.