Q.
f(x) = 5x + 3
f-¹(x) = ___![]()
f(x) = 5x + 3
f-¹(x) = ___
[tex]f(x) = 5x + 3[/tex]
[tex]y = 5x + 3[/tex]
[tex]y - 3 = 5x[/tex]
[tex] \frac{y - 3}{5} = x[/tex]
[tex]x = \frac{y - 3}{5} [/tex]
[tex]f {}^{ - 1} (x) = \frac{x - 3 }{5} [/tex]
Penyelesaian:
f(x) nya jadi y
[tex]f(x) = 5x + 3 \\ y = 5 x + 3 \\ y - 3 = 5x \\ x = \frac{y - 3}{5} \\ {f}^{ - 1} (x) = \frac{x - 3}{5} [/tex]
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[tex] \boxed{ \colorbox{black}{ \sf{ \color{lightgreen}{ answered\:by\:Duone}}}} [/tex]
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