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The area of triangle PAB is 8 with A(0, 0) and B(4, 0). The locus of P is
Ay = 8
By = ±4
Cy = ±2
Dx = ±4
Answer & Solution
Correct answer: B. y = ±4
Area = (1/2)(4)|y| = 8 gives |y| = 4, so y = 4 or y = -4.
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