5. Find the equation of a line that is parallel to y = 2x + 8 and passes through (5, 1).
![5 Find the equation of a line that is parallel to y 2x 8 and passes through 5 1 class=](https://us-static.z-dn.net/files/d9f/3e690bbb589c1f91831d9a10b44c1186.png)
First, let's find the slope of the given line, comparing the equation with the slope-intercept form of a linear equation (y = mx + b, where m is the slope).
Looking at the equation, we have m = 2.
Since parallel lines have the same slope, so the slope of the parallel line is also m = 2.
Then, using the point (5, 1) in the equation, we have:
[tex]\begin{gathered} y=mx+b \\ 1=2\cdot5+b \\ 1=10+b \\ b=1-10 \\ b=-9 \end{gathered}[/tex]Therefore the equation is y = 2x - 9, and the correct option is 1.