Which one of these transformations would produce an image that is not congruent to its pre-image? (5 points)
1) A rotation of 180 degrees about the origin
2) A dilation followed by a reflection
3) A translation of (x + 5, y - 2)
4) A translation followed by a reflection

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.