Posted by mysterychicken on Thursday, June 20, 2013 at 11:26am.
Not sure about this question...
1. State the range for the function f(x) = log 1/2(base) (x1) + 2
..help?

math  mysterychicken, Thursday, June 20, 2013 at 11:29am
I think its (infinity, infinity)

math  Steve, Thursday, June 20, 2013 at 11:37am
You know that the range for log(x) is all real numbers.
Similarly, the range for log_2(x) is all real numbers, since log_2(x) = lnx/ln2
log_(1/2)(x) = log_2(x) since 1/2 = 2^(1)
So, log_(1/2)x = lnx/ln2
log_(1/2)(x1) is just the same graph, shifted right by 1
log_(1/2)(x1)+2 is the same graph, shifted up by 2
The range is still all reals.
Visit wolfamalpha.com and type in
log_2(x1)+2

math  mysterychicken, Thursday, June 20, 2013 at 11:41am
Got it!

math  Jorge, Thursday, June 20, 2013 at 11:44am
The range is basically all the values that can come out from plugging something in (in other words, every answer that the equation can have). In order to find the range, you need to graph this equation. Once you have the graph, find which point the asymptote(the dashed line) lies. This is the first value that goes into the range. Next, you find which side the actual line goes to. If it goes to the right, then the range is (y coordinate of asymptote, ∞). If it goes to the left, then it is (∞, y coordinate of asymptote) hope it helps :)
ps. i like your username xD

math  Jorge, Thursday, June 20, 2013 at 11:45am
well nevermind ._.

math  mysterychicken, Thursday, June 20, 2013 at 11:46am
Thanks for the compliment haha
Been using this username on Jiskha for 5 years now
Answer This Question
Related Questions
 Math  So I have a question regarding advanced functions, logarithm stuff. here ...
 Precalculus  I'm studying for my precalc exam and have completed 42 practice ...
 precalculus  What is the domain and range of log3 (1x)? I will be happy to ...
 Algebra 2  Explain the difference between log base b (mn) and ( log base b of ...
 graphing  How do you graph y= log (base 5)(x)? The written question is: ...
 log graph  How do you graph y= log (base 5)(x)? The written question is: ...
 log equation graph  How do you graph y= log (base 5)(x)? The written ...
 math  write as a single logarithm: 2logbase3(1/x)+(1/3)logbase3(square root of...
 Advanced Functions/ Precalculus Log  1. Evaluate 4^(log base4 64) + 10^(log100...
 check!  here is the question: log5(x4)= log7x solve for x. These are just base...
More Related Questions