Tentukan Invers Dari : f (x) = 2/3 x + 1 f (x) = 1/4 (2x+1) f (x) = 10/(4x-3)

f(x) = 2/3x + 1
y = 2/3x + 1
2/3x = y - 1
x = 3/2(y - 1)
f⁻¹(x) = 3/2(x - 1)

f(x) = 1/4(2x + 1)
y = 1/4(2x + 1)
4y = 2x + 1
2x = 4y - 1
x = 1/2(4y - 1)
f⁻¹(x) = 1/2(4x - 1)

f(x) = 10/(4x - 3)
y = 10/(4x - 3)
y(4x - 3) = 10
4xy - y = 10
4xy = y + 10
x = (y + 10)/4y
f⁻¹(x) = (y + 10)/4y