jika f(x) = 7x - 10 tentukan f^-1(4)

f(x) = 7x - 10
y = 7x - 10
7x = y + 10
x = (y + 10) / 7

f`¹(x) = (x + 10) / 7
f`¹(4) = (4 + 10) / 7
f`¹(4) = 14 / 7
f`¹(4) = 2

semoga berguna +_+

f(x) = 7x - 10
7x - 10 = y
7x = y + 10
x = (y + 10)/7
f^-1(x) = (x + 10)/7
f^-1(4) = (4 + 10)/7 = 14/7 = 2