1.5 Inverse Functions

Reverse order of operations is necessary to to undo/solve a solution.

Exp
Why do we add the 3 to the 7? Its is because it is the inverse operation which is adding adding when the other side of the equation is subtrcting.hy do we add first? it is because we are solving or undoing the equation so we use the reverse order of operations.

Finding an inverse for a solution such as 2x+5=y is simple just switch the x and the y

This is the inverse of the function

Two functions f and g are function iff (if and only if)

f f^-1

(x,y) (y,x)

Only functions that pass horizontel line- Functions have inverses- one to one- for every y theres only one x

A function f is one to one iff:

f(a)=f(b) implies a=b

Use definition to verify

and

=

=
=x

=x

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