Question

What is the equation of the following line written in general form? (The y-intercept is -1.)

-2x-y-1=0
2x+y - 1 = 0
2x-y-1 = 0

Answer 1

2x-y-1=0

There are 2 ways that you can solve this . Either plug in the x and y value into each equation until it is right or rewrite the equation .
the equation in slope intercept form is y=2x-1
When you get y by itself in the last one it is also equal to y=2x-1
For both ways work is attached !