This is similar to Problem 2 from your Section 2.8 worksheet.

Determine whether each pair of lines is parallel, perpendicular, or neither.

a) $\dfrac{2}{3}x+8 y = -9$ and $-24 y - 2 x = -216$
Parallel
Perpendicular
Neither

b) $14 y + 42 = 4 x$ and $\dfrac{28}{2}y=4 x - \dfrac{84}{2}$
Parallel
Perpendicular
Neither

Hint:

Hint: