Question

The lines graphed below are parallel. The slope of the red line is -. What is the slope of the green line?

Answer 1

Because the lines are parallel, the lines have the same slope. I can tell by the direction of the lines, that they are negative. Therefore it is either C or D. The line is 4 points up the y axis (rise) and 3 points up the x-axis (run). Using rise over run, the slope is -4/3, or C.

Answer 2

Here, Lines are parallel so there slope would be same.
m = y2-y1 / x2-x1
m = 4 - 0 / 0 - 3
m = -4/3

In short, Your Answer would be Option C

Hope this helps!