Jika invers fungsi kuadrat terbatas f(x) = 2x + 5 adalah f^-1(x), tentukan nilai dari f^-1(13).

Answer and explanation

Correct answer: B. 4

f^-1(y) = x jika dan hanya jika f(x) = y. Maka 2x + 5 = 13 <=> 2x = 8 <=> x = 4.

Practise more Matematika dan Statistika Dasar.

Free questions with an explanation for every one, and full timed Politeknik Statistika STIS mock tests.