1.

Find the value of a, if the line passing through (–5, –8) and (3, 0) is parallel to the line passing through (6, 3) and (4, a).

Answer»

Two lines are parallel if their slopes are equal

∴ \(\frac{0-(-8)}{3-(-5)}\) = \(\frac{a-3}{4-6}\) ⇒ \(\frac{8}{8}\) = \(\frac{a-3}{-2}\) ⇒ a – 3 = –2 ⇒ a = 1.



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