Wednesday

April 16, 2014

April 16, 2014

Posted by **cnfused-steve please** on Saturday, December 1, 2012 at 3:26pm.

f(x)=2x+1/9x-5; g(x) 4x/9x-5

a.(f+g)(x)=?

What is the domain?

b. (f/g)(x)=?

what is the domain?

2.the function f is defined as follows

{x+6 if -5 ¡Üx<1

f(x)={9 if x=1

{-x+4 if x>1

a. the domain of the function f is ?

b. what are the intercepts?

- college algebra -
**confused-steve please**, Saturday, December 1, 2012 at 5:37pmon the second question it should be

f(x)= {x+6 if -5is less than or greater than x<1

9 if x=1

-x+4 if x>1

sorry it didn't come out right.

- college algebra -
**Steve**, Saturday, December 1, 2012 at 7:03pmit is customary online to use <= or >= for less than or equal, etc.

for both f and g, the domain is all reals except x = 5/9

so, f+g has the same domain

f/g = (2x+1)/4x

so, you would think the domain is all reals except x=0, but since neither f nor g is defined at x = 5/9, we have to exclude that as well.

2.

since all pieces of f are polynomials, their domain is just as stated: [-5,1)U(1)U(1,oo) = [-5,oo)

intercepts: (0,6) and (4,0)

**Related Questions**

College algebra - Given the following quadratic equation find. a) the vertex b) ...

college algebra - Given the following quadratic equation, find;? a. the vertex ...

college algebra - Given the following quadratic equation, find a. the vertex b. ...

college algebra - Find the inverse of the following function. Find the domain, ...

PLEASE HELP! college algebra - Given the following piecewise function f(x)= {-x+...

college algebra - for the given function f&g, find the following and state the ...

Algebra - That is not what the ? is asking. The ? is asking about how to get the...

College Algrbra - Given the following quadratic equation, find a. the vertex b. ...

Algebra - Given the function f described by f(x)=+10, Find each of the following...

college algebra - Given the following rational function, find: A. horizontal ...