Question 225208
Have to get both of them into y-intercept form.
So, first one:
Move the x over:
{{{2y=-x+9}}}
Divide both sides by 2:
{{{y=-(1/2)x+9}}}

Second one:
Move the 2x over:
{{{4y=-2x+3}}}
Divide both sides by 4:
{{{y=-(1/2)x+3}}}

To find out if they are perpendicular, compare the slopes:
In the first one {{{m=-1/2}}}, and in the second one, {{{m=-1/2}}} also.
To be perpendicular the slopes need to be negative and inverse of each other. These slopes are equal, so the lines are parallel.
So, no, not perpendicular.