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
\(\displaystyle{y=4x}\)
Proportions
Proportions

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

Proportions
Proportions
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
\(\displaystyle{y=2x-1}\)