Given the equations:
![\begin{gathered} y=2x+6 \\ y=(1)/(2)x+3 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/yle41mxnomap9jhxcnpu448ni7i2u6bggd.png)
The equation has the form of slope - intercept form which is like:
![y=m\cdot x+b](https://img.qammunity.org/2023/formulas/mathematics/college/3vdit4cyikmz0crw73cnwv4b8bte4f6lad.png)
Where m is the slope and b is y- intercept
So,
The slope of the first equation = 2
The slope of the second equation = 1/2
The graphs of the equations are parallel when the slopes are equal
The graphs of the equations are perpendicular when the product of the slopes = -1
so,
the slopes are not equal
The product of the slopes = 2 * 1/2 = 1
So, the graphs of the equations are neither parallel nor perpendicular.