Maggie claims that if you restrict the domain of function f(x)=x2−4 to be x≥−2, then the function is invertible and the inverse function is f−1(x)=x+4−−−−−√. Which statement provides a correct analysis of Maggie's claim?
A
The claim is correct because when the domain of f(x) is restricted to x≥−2 the function is invertible.

B
The claim is incorrect because in order for f(x) to be invertible and its inverse to be f−1(x)=x+4−−−−−√ the domain must be restricted to x≥0.

C
The claim is incorrect because in order for f(x) to be invertible and its inverse to be f−1(x)=x+4−−−−−√ the domain must be restricted to x≥−4.

D
The claim is incorrect because there is not a domain restriction that can be applied to f(x) to make the function invertible.

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )