# Topic 10: Equations of Lines

Try the problem below. After you try the problem, you can watch a video to see a correct solution.
Write an equation of a line that is perpendicular to $$y = 4x - 6$$ and passes through the point $$(8, 2)$$.
 A $$\displaystyle{y=-\frac{1}{4}x+4}$$ B $$\displaystyle{y=-\frac{1}{4}x}$$ C $$\displaystyle{y=\frac{1}{4}x}$$ D $$\displaystyle{y=4x-30}$$ E $$\displaystyle{y=4x}$$

After watching the video, try this problem to practice more.

Write an equation of a line that is perpendicular to $$y = \frac{1}{2} x -1$$ and passes through the point $$( 2, -3)$$.
 A $$\displaystyle{y = -2x + 7}$$ B $$\displaystyle{y = -2x + 1}$$ C $$\displaystyle{y = \frac{1}{2} x -4}$$ D $$\displaystyle{y = \frac{-1}{2} x -2}$$ E $$\displaystyle{y=2x-1}$$