Matthew examines the relation shown in the box. { ( 4 , − 11 ) , ( 3 , 1 ) , ( 0 , 1 ) , ( 2 , 6 ) , ( 3 , − 1 ) } Is the relation a function

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Math it's appreciated. (picture provided)

Which of the following is the graph of y= square root -x-3