Can someone please help me answer this one question ​

Which value of c would make he following expression completely factored? 8x+cy

Which ordered pair identifies a point in quadrant iv? a) (2, 5) b) (0, 1) c) (-1, -1) d) (12, -5) which quadrant is (-4,-6) in? a) i. b) ii. c) iii. d) iv.

If the line in the graph is shifted up two units which is the equation of the new line