Question

if f (x)=2x-3 then f-1(x)

Answer 1

Answer:

x = 2x-3

x-2x=-3

-x=-3

∴x=3

Answer 2

Step-by-step explanation:

to find inverse just convert x in terms of y

$y = 2x - 3 \\ 2x = y + 3 \\ x = \frac{y + 3}{2}$

therefore f-1(x)= x+3/2

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