6. domain: 0,0,1,1,2,2,3,3,4,4,5,5 range: 0,-3,-4,-2,2,3 function: no
domain are all the x values, range are all the y value. if there an x value repeats it is not a function, if a y value repeats it doesnt matter. i cant see question 7 and 8 but hoped this helped!