Minki thinks of a number. he subtracts 1 from the number, divides the result
by 2, and then adds 4. the number he ends up with is 18. what number did
minki start with?
if you work backward to solve this problem, what do you do first?
o
a. add 4 to 18
o
b. multiply 18 by 2
o
c. subtract 4 from 18
o
d. add 1 to 18
susnya

62926281916 inches of rain: )

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.