Find the period of the function. y = -3 cos (1/4)x

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Which inequality has a dashed boundary line when graphed ?

In the diagram below, abc is congruent to dec what is the value of x