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Please help me with this math problem.

Please help me with this math problem.-example-1

1 Answer

3 votes

Answer:

b = 2

Explanation:

Using the midpoint formula

(2, 1) = [
(1)/(2)(- 4 + 8),
(1)/(2)(b + 0) ]

considering the y-coordinate, then


(1)/(2) b = 1 ( multiply both sides by 2 )

⇒ b = 2


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