Asked by supergirl
one to one property, 3^x-4=1/27 Need help do not understand
Answers
Answered by
Steve
f(x) is 1:1 if every x produces a unique value of f, and every value of f can be produced by a unique value of x.
Geometrically, that means that no horizontal or vertical line cuts the graph more than once.
Graph this function, and you will see that it is 1:1.
However, what you have is an equation, whose solution is
x=log(4 1/27)/log(3)
Nothing 1-to-1 about solving an equation, unless you just want to show that there is a unique solution.
Geometrically, that means that no horizontal or vertical line cuts the graph more than once.
Graph this function, and you will see that it is 1:1.
However, what you have is an equation, whose solution is
x=log(4 1/27)/log(3)
Nothing 1-to-1 about solving an equation, unless you just want to show that there is a unique solution.
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