Using the given information, the coordinates of B are (-7, 4)
<h3>Midpoint of a Line </h3>
From the question, we are to determine the coordinates of B.
Given a line with endpoints (x₁, y₁) and (x₂, y₂), then the midpoint of the line is
((x₁+x₂)/2, (y₁+y₂)/2)
From the given information,
The midpoint of AB is M(-3, 0)
and
The coordinates of A are (1,-4)
Let the coordinates of B be (x₁, y₁)
Then,
-3 = (1 + x₁)/2
-6 = 1 + x₁
x₁ = -6 -1
x₁ = -7
Also,
0 = (-4 + y₁)/2
0 = -4 + y₁
y₁ = 0 + 4
y₁ = 4
Hence, the coordinates of B are (-7, 4)
Learn more on Midpoint of a line here: brainly.com/question/18315903
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