Graph y=4x-9y what does this equal

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest