A sequence is shown below. 0,1,0,1,0,1,0,1,... Which of the following statements best explains whether or not the sequence represents a function?

What is the value of x? enter your answer in the box. (cm)

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?