Question

Determine whether the graph of the pair of equations is parallel, perpendicular, or neither.

y=-4x+1
4y=x+3
Select one:
a. parallel
b. perpendicular
c. neither

Answer 1

`y=mx+b`

`m_(1) =-4`

`m_(2)=(1)/(4)`

`m_1=(-1)/(m_1)=(-1)/((1)/(4))=-4`
Therefore the lines are perpendicular.