Please help its math I will give you more points if you answer correctly and The equations of four lines are given. Identify which lines are perpendicular.

Line 1: y+8x=−5

Line 2: x+1/6y=−5

Line 3: y=−6x−7

Line 4: y+3=1/8(x−1)

Lines 2 and 3 are perpendicular.
Lines 1 and 2 are perpendicular.
All four lines are perpendicular.
Lines 1 and 4 are perpendicular.