SOLUTION: Let g and f be two functions defined by g(x)=(-5+x)(2+x) f(x)=2-9x for any real number x. Find g/f(-3) and then find all values that are NOT in the domain of g/f. If there is

Algebra ->  Functions -> SOLUTION: Let g and f be two functions defined by g(x)=(-5+x)(2+x) f(x)=2-9x for any real number x. Find g/f(-3) and then find all values that are NOT in the domain of g/f. If there is      Log On


   

Question 674595: Let g and f be two functions defined by
g(x)=(-5+x)(2+x)
f(x)=2-9x
for any real number x.
Find g/f(-3) and then find all values that are NOT in the domain of g/f. If there is more than one value, separate them with commas.
g/f(-3)= _________
Values that are NOT in the domain of g/f : ___________
Any help please... I'm stuck and this is my last question of a real important test! Thanks! :)
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
g(x) = (-5+x)(2+x)
f(x) = 2 - 9x
...
g/f(-3) = %28%28-5%2B-3%29%282%2B-3%29%29%2F%282-9%28-3%29%29
= %28%28-8%29%28-1%29%29%2F%2829%29+=+highlight_green%288%2F29%29
...
g/f(x) will be undefined where the denominator = 0
0 = 2-9x
-2 = -9x
2%2F9=x
Values not in the domain of g/f = 2%2F9
.....................
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