What is the inverse of the function f(x) equals X +3

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Explanation:

The inverse undoes or goes completely opposite of what the original function does. The f(x) function given to us takes some input x (any number you want) and adds 3 to it.

The inverse will undo the addition of 3 by subtracting 3

For instance, f(x) will take x = 19 and get the output y = 22

The inverse will take the value x = 22 and take it back to y = 19

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You can do the following steps to find the inverse

f(x) = x+3

y = x+3 .... replace f(x) with y

x = y+3 .... swap x and y

x-3 = y .... subtract 3 from both sides to solve for y

y = x-3

replace y with the inverse function notation; we have found the inverse

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk