For the regular slopes just take the number with x when y is alone. For parallel it is the same thing and the regular slope, and for perpendicular, u find the reciprocal, and flip the sign. Reciprocal is to flip the fraction. If y is not alone, make it alone.
Number1 slope : 8 ; parallel: 8; perpendicular: -1/8.
Number 2 slope: -5/6 ; parallel: -5/6; perpendicular: 6/5.
Number 3 slope: -4; parallel: -4; perpendicular: 1/4.
Number 4 slope: 7/9; parallel: 7/9; perpendicular: -9/7.
Number 5 slope: 1/2; parallel: 1/2; perpendicular: -2/1.
Number 6 slope: -3; parallel:-3;perpendicular: 1/3.
Number 7 slope: 4; parallel: 4; perpendicular: -1/4.
Number 8 slope: 0; parallel:0; perpendicular: 0
Number 9 slope: undefined; perpendicular: undefined; parallel: undefined. Hope o could help
