Aregular 40-sided polygon is rotated with its center of rotation at its center. what is the smallest degree of rotation needed to map the polygon back on to itself?

171 degrees

Step-by-step explanation:

40-sided polygon has an interior angle equal to:

(40 - 2) (180) /40 = 171 degrees

left 3, up 4

step-by-step explanation:

just count the values of x & y of the vertex of the graph and see how many units in the x and y direction will get you from the f(x) graph to the f(x) graph

i believe that the answer is

b. y-1=-2(x-4)

hope this !