Mathematics, 03.10.2019 04:00 dipperisbro

Let a, b, c, and d be real numbers with a, c 6= 0. prove that the lines y = ax+b and y = cx + d have the same x-intercept if and only if ad = bc

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Let a, b, c, and d be real numbers with a, c 6= 0. prove that the lines y = ax+b and y = cx + d have...