Determine whether the pair of lines are parallel, perpendicular, or neither.

Question

1)f(x)=2/3x+1

2)2y+3x=1

Answer 1

slope of first is 2/3

second is
y = -3 x/2 + 1/2
slope = m' = -3/2

the slope of the second is negative the inverse of the slope of the first, so they are perpendicular
m' = -1/m