jika f (x) = 2x + 4, maka: a. f - ¹ (x) b. f - ¹ (4)
![]()
Jawab:
a. [tex]f^{-1}(x) = \frac{x -4}{2}[/tex]
b. [tex]f^{-1}(4) = 0[/tex]
Penjelasan dengan langkah-langkah:
a.
[tex]f(x) = 2x +4[/tex]
[tex]f(x) -4 = 2x[/tex]
[tex]x = \frac{f(x) -4}{2}[/tex]
[tex]f^{-1}(x) = \frac{x -4}{2}[/tex]
b.
[tex]f^{-1}(4) = \frac{4 -4}{2}[/tex]
[tex]f^{-1}(4) = \frac{0}{2} = 0[/tex]
[answer.2.content]
