Question

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Answer 1

F(x) = ax + b; F(-1) = -3; F(0) = -1
F(0) = 0x + b = -1 => b = -1

F(-1) = -1a + b = -3 => -a -1 = -3 => -a = -3 +1 => -a = -2 => a = 2

F(x) = 2x -1