1. domain: -6,5,0,-2
range: 4,-1,3,4
function: yes
2. domain: -4,-3,0,-3
range: 8,1,-5,2
function: no
3. domain: 5,3,0,2,5
range: 3,-3,1,-3,2
function: yes
4. domain: 3,1,0,2,4
range: -5,1,-3,4,-5
function: yes
5. domain: (5, infinity)
range: (-1, infinity)
function: yes
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!