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anonymous
 4 years ago
I need someone to walk me through a couple of problems. The first is f(x)= lxl+1find the domain algebraically.
anonymous
 4 years ago
I need someone to walk me through a couple of problems. The first is f(x)= lxl+1find the domain algebraically.

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0unless otherwise specified the domain will be all real numbers, since you can take the absolute value of anything

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1I agree with satellite's diagnosis.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the real truth is that you should specify the domain of the function when you define it, but if you don't it is assumed to be the largest set of numbers on which the function can act, so in this case anything

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I need to show algebra for credit

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sorry but there is no algebra to do here

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1There is no algebra to show.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0math is not about algebra, math is about reasoning

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok how about 2x^35x+6

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1It is a polynomial. Those things exist for any input x which means its domain is all read numbers

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0polynomial domain is still all real numbers. you only have to worry about division by zero, or taking a even root of a negative number. both of those are not allowed, but most things are permitted

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The instructions are to find the domain algebraically. You set the function =0 and solve. I am not sure how to do this on these problems.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0again, no algebra to show

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1Are you sure it says find domain and not xintercepts?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0setting the function = 0 tells you where it is zero, not what the domain is

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes I am sure and I realize that this tells me the zero but it is what I have to do in order to get credit. Going through and stating only domain with no work gets me nothing. I have to find the zero.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Finding the zero is not equivalent to finding the domain

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0those are separate problems and are unrelated

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I understand what you all are saying. I am saying I have to find the zero to get credit for work. Would it help if I asked you to show me how to find the zero for these?

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.0You could say that x >=0 for all real numbers so the domain is all real numbers.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0There is no zero for f(x)=x+1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0because x can never = 1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[x+1\geq 1\] so it is never zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what about 2x^35x+6?

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1So we can try syntehtic division to find rational solutions but this does not guarantee there are rational solutions

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.0Did you perhaps say domain when you meant range?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0No, I need to find the zero

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1i be right back using synthetic division and trail and error and finding zeros I found one zero to be x=2

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1327795208134:dw

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.1\[2x^24x+3=0\] solving this equation will give you the other two zeros
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