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777dan777 [17]
3 years ago
9

A line with a slope through the points (0,4) and (-6,v). What is the value of v

Mathematics
1 answer:
Fed [463]3 years ago
3 0

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


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  • since 1R4, 4 must be related with 1.

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  • since 2R1 and 1R4, 2 must be related with 4.

Then, the smallest relation reflexive, symmetric and transitive containing R1 is

\{(1,1),(2,2),(3,3),(4,4),(1,2),(1,4),(2,1),(2,4),(3,3),(4,1),(4,2),(4,4)\}

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