Question: Use substitution to determine whether the given ordered pairs are solutions of the given equation. (a) (-1, -9), (0, 2); y = 7x - 2

Use substitution to determine whether the given ordered pairs are solutions of the given equation.
(a) (-1, -9), (0, 2); y = 7x - 2
(b) (1/2, 8), (-1, 6); y = -4x + 10
(c) (2/3, 3/4), (1, 3/2) (6x - 4y = 1

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