#1**+2 **

y = -2x + 8 would work

In fact.....any equation in the form y = -2x + b would work

CPhill Jun 10, 2019

#2**0 **

Parallel means that the lines never touch, and for that to happen, they must have the same slope.

The slope of -2 means that an equation is y = -2x+4. In fact, the y-intercept doesn't matter because they are all parallel.

You are very welcome!

:P

CoolStuffYT Jun 10, 2019

#3**+3 **

let's start off by defining what a parallel line is:

-same slope

-different y intercept

now let's analyze our equation y=-2x-3

so now lets see our slope, and as we said; a parallel line must have the same slope, thus our slope will stay unchanged. (-2)

and lets see the y intercept. So the y-intercept needs to change and so you can put any value that is not equal to -3.

example would be:

y=-2x+5

hope this helped! :)

Nirvana Jun 11, 2019