Wednesday

April 1, 2015

April 1, 2015

Posted by **Soraya** on Sunday, August 23, 2009 at 2:52pm.

y= (radical) x-4

y= (radical) x^2-4

plz help me step by step. I just need to refreash my math, but i forgot how to find it

- Math Pre-Calc. -
**Damon**, Sunday, August 23, 2009 at 3:13pmdo you mean

y = sqrt(x-4) ???

if so the right side is real only for x>/= +4 so domain is all x >/= +4 and range is all positive y

If the second one is

y = sqrt (x^2-4)

then (x^2-4) is real only for |x|>/=2

so domain is all x </- -2 and all x>/=+2

and again y is always +

- Math Pre-Calc. -
**Soraya**, Sunday, August 23, 2009 at 3:40pmhow do u figures out the doamin and range???

**Answer this Question**

**Related Questions**

math,correction - Can somoene helpme plz... Simplify radical 7 * radical 14 ...

math,correction,plz - can someone correct these for me plz. Simplify by ...

math,correction - Simplify by combining like terms. Problem #32 radical (63) - 2...

math - in the question 6radical x +3 radical y -2radical y +3 radical x -radical...

Math - Find the domain of the following functions. 1. y= radical(x-3) - radical(...

math,correction,plz - Perform the indicated division. Rationalize the ...

math, correction,plz - can someone correct these for me plz.... Problem#36 Use ...

math,correction plz - can someone correct my math...thanks... Perform the ...

math , help,algebra - i am up to this point in my problem but i don't know what ...

Calculus - please help - Can someone please do these questions step by step and ...