Question: Prove that if the points (x, y) and (x, y) lie on the same line as (x 2 * y 1 *) and (x 2

Prove that if the points (x₁, y₁) and (x₂, y₂) lie on the same line as (x2* y1*) and (x2*, y2*), then

YV XX 2 YY X X 2

Assume x₁ ≠ x₂ and x₁* ≠ x₂*.

YV XX 2 YY X X 2

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