Answer:
#9. 4x - y = 2; slope=4; x inter= -1/2; y inter=2
#10. 3x + y = 5; slope=-3; xinter= 5/3; yinter=5
#11. X-y=-7; slope=1; x inter=1/-7; y inter= 7
#12. 5x-y=-3; slope= 5; x inter=-3/5; y inter=3
#13. 8x+y=12; slope=-8; x inter=3/2; y inter=12
#14. 9x-y=-5; slope=9; x inter=-5/9; y inter=5
Explanation: