Friday

August 29, 2014

August 29, 2014

Posted by **Caroline** on Wednesday, September 9, 2009 at 4:11am.

f(x)=rad. x-9

write the intervals of the functions. How do I put the set of numbers in the form of intervals such as infinity.

I solved it and got the answer as this:

x < or = 9

(infinity,9]

Please help me, I am stuck.

- math -
**MathMate**, Wednesday, September 9, 2009 at 7:33am(infinity,9]

means the interval's lower limit is at but excludes ∞. The exclusion is signified by the left parenthesis "(".

The upper limit is 9, and 9 is included, as indicated by the square bracker "]".

I do not quite understand the meaning of

f(x)=rad. x-9

so I cannot comment on whether the answer is correct.

**Related Questions**

math - which statement about linear functions are true A)linear functions grow ...

Math advance functions gr 12 - use the asymptotes and intercepts to make a quick...

advance functions gr 12 - use the asymptotes and intercepts to make a quick ...

advance functions gr 12 - use the asymptotes and intercepts to make a quick ...

advance functions gr12 - use the asymptotes and intercepts to make a quick ...

advance functions gr12 HELP ASAP - use the asymptotes and intercepts to make a ...

math - Sam emptied his coin bank and made a bar graph of the numbers of each ...

Calculus - find the intervals where the function is increasing and the intervals...

calculus - f(x)=2x+8x^-1.For this function there are four important intervals...

Math - Consider the function f(x) = 7 x + 3 {x ^ -1 }. For this function there ...