Question: Show that the vector n = al t bj is perpendicular to the line with equation ax + by = c. Let P1(x1, y1) and

Show that the vector n = al t bj is perpendicular to the line with equation ax + by = c. Let P1(x1, y1) and P2(x2, y2) be two points on the line and show that n ∙ = 0.

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