$\"\"$

The line equation in slope-intercept form is $\"\"$ , where m is the slope and b is the y-intercept.

Write the equation 2 in slop-intercept form $\"\"$ . $\"\"$

Next find the slope of the equations.

Slope of the first equation is 4.

Slope of the second equation is $\"\"$ 4. $\"\"$

If two lines are parallel, their slopes must be equal. (Or)

If two lines are said to be perpendicular,the product of their slopes is equal to $\"\"$ .

Here in this case,the two slopes are neither equal nor their product is equal to $\"\"$ . $\"\"$

The lines are perpendicular.