1.) is that a functions inverses is mainly switching the inputs and outputs. For example,
X Y if that where my function, the inverse of that function would be instead of (1,3), it'd
1 3 be (3,1). so your outputs now become ur inputs and vise-versa!!!
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2.) Also the inverse of a function will always reflect 
among the y=x line. as shown below:
among the y=x line. as shown below:3.) also in order to determine whether or not a function has an inverse, you should use the HORIZONTAL LINE TEST!!
4.)LOGARITHMS!!!!
an important rule is logb^x=n means b^n=x
Well i didnt understand alot about logs. like i wasnt sure if i should use the "ln" or if it wasnt even necessary. And all the rules can be pretty confusing!!!!
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Excellent understanding of the inverses Jessica. Just remember it's not ONE function that is symmetrical about the y=x line, but TWO different functions that are reflected about the y=x line.
ReplyDeleteThe "ln x" is the SAME thing as log (base e) of x. You treat it like any other logarithm function. It helps solve the exponential e^x.