Four different tables of x and y values are shown. Table 1
у
Table 2
х у
-4 5
10
NOW
1
-4
8
5
2
5
5
26
2
8
Table 3
Table 4
у
2
х
-4
-1
y
-7
XNNIO lo
2
2
3
7
2
9
19
Which table(s) represent(s) a function?
Table 1 only
O Table 2 only
O Tables 1 and 3 only
Tables 1.3. and 4 only

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.