You should probably revise this and tell us what the slope is. If you do that, I'll come back and edit my answer. Sorry, I should have put this in a comment.
You should probably revise this and tell us what the slope is. If you do that, I'll come back and edit my answer. Sorry, I should have put this in a comment.
Givens
Slope = 2
y2 = 4
y1 = v
x2 = 0
x1 = -6
Formula
m = (y2 - y1) / (x2 - x1)
Solution
Substitute
2 = (4 - v) / (0 - - 6)
2 = (4 - v) / 6 Multiply both sides by 6
2*6 = 4 - v Combine the left
12 = 4 - v Subtract 4 from both sides
12-4 = 4-4 - v Combine the left and the right
8 = - v Divide by - 1
-8 = v
Answer: v = -8