Question

Find the domain and range of f(x)=x²-4/x-4​

Answer 1

Answer:

x-4is not equal to zero,therefore x is not equal to 4

x2-4/x-4=y

(x+4)(x-4)/x-4=y

x+4=y

therefore x=y-4

we know that x is not equal to 4

so... 4 not equal to y-4

therefore y is not equal to 8

domain=R-(4)

range =R-(8)

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