Recall that two lines are perpendicular if the product of their slopes is equal to -1.
Now, notice that the equations of the lines are in slope-intercept form:
[tex]y=mx+b,[/tex]where m is the slope of the line.
Therefore, the slopes of the lines are:
[tex]7,\text{ and }\frac{1}{7}.[/tex]The product of the above numbers is:
[tex]1.[/tex]Therefore, the lines are not perpendicular.
Answer: False.
