Jika f(x) = 5x + 7, berapakah f⁻¹(6)?

Answer and explanation

Correct answer: C. -1/5

Dari y = 5x + 7 diperoleh x = (y - 7)/5. Untuk y = 6, x = -1/5.

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Jika f(x) = 5x + 7, berapakah f⁻¹(6)? | UM CBT UGM