Answer:
D
Explanation:
Let's look at the first equation first, y = -2x -1. We know its y-intercept is at -1, so if there isn't a line on the graph that intersects at -1, we can cross it of. This means B and C can't be the answers.
Let's now look at the slope of that same equation. It's negative, so it must be going left to right (like this: \ not like this: /).
Only graph D has a line that goes through -1 on the y-axis and has a negative slope!