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anonymous
 5 years ago
Why would f(1/4) be undefined?
anonymous
 5 years ago
Why would f(1/4) be undefined?

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Anikate
 5 years ago
Best ResponseYou've already chosen the best response.0well we no that the answer is f/4

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1your question is not complete. you need to tel us what f(x) is defined to be.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I have to explain why why f(1) = 3, f(0) = 2, and f(1) = 1, but why f(1/4) is defined

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1have you been given the expression for f(x) in terms of x?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in the 4x^2+ 7x  2/ 4x1

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1ok  now it makes sense

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i simplified it to x + 2/ 1 XD

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1if you look at the last term, you have a division by "4x1". what will "4x1" equate to when x=1/4?

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1\[f(x)=4x^2+7x\frac{2}{4x1}\]

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1correct  so you would be dividing by zero  which is undefined.

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1BTW: your simplification to x + 2/ 1 is not correct.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ahhhh :( what I do wrong?

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1can you please try and explain to me step by step what you did so that I can spot where you went wrong

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I factored to get (x+2)(4x1)/4x1 then canceled out common factors and got x+2/1

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1your factorisation in wrong. remember the last term is a fraction.

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1\[\begin{align} f(x)&=4x^2+7x\frac{2}{4x1}\\ &=\frac{(4x1)(4x^2+7x)2}{4x1} \end{align}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0its supposed to be a rational expression o.O

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it looks like this : 4x^2+ 7x  2  4x1

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1so the equation is supposed to be:\[f(x)=\frac{4x^2+7x2}{4x1}\]

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1which can be factored as:\[f(x)=\frac{(x+2)(4x1)}{4x1}\]

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1but you cannot cancel the 4x1 because it would be like dividing top and bottom by zero when x=1/4

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i just canceled out common factors that what my teacher told me :(

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1you can only do that if you are told that x can NEVER be equal to 1/4

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1in this case I believe x can take on ay real value from minus infinity to plus infinity

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1and it is undefined at x=1/4

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1was the question asking you why is this undefined at x=1/4?

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1so then you can state that it undefined at x=1/4 because at x=1/4 we would be dividing by zero.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay Thank you!!! XD Wish i could giv you more than one medal o.O lol

asnaseer
 5 years ago
Best ResponseYou've already chosen the best response.1You're welcome  I'm glad I was able to explain it well enough for you.
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