Find the inverse function of f(x)=5/(x-4)

f(x) = 5/(x-4)To find the inverse, replace f(x) with y: y=5/(x-4)Now the aim is to make x the subject of the equation:Multiply both sides by x-4:y(x-4)=5Divide by y:x-4=5/yAnd finally add 4:x=5/y + 4

KM

Related Maths GCSE answers

All answers ▸

Solve by completing the square: x^2 - 8x + 12 = 0


Insert one pair of brackets so that this calculation is correct; 3 x 6 + 5 - 1 = 32


Algebra e.g. 2x + 14 = 18. what is x?


How do I make calculations with percentages?