posted by ALLI on .
for the given functions f and g find the following and state the domain of each result
(they look like fractions)
B)domain of (f+g)
d) domain of f/g?
please show work
a. (f+g)x = (3x+1)/(8x-9) + 5x/(8x-9) =
b. 8x-9 = 0
8x = 9
X = 9/8.
When X = 9/8, the denominator becomes zero and the fraction undefined. Therefore, 9/8 is out of the domain.
Domain = All real values of X except 9/8: 9/8 > X > 9/8.
c. F(x)/G(x) = F(x) * 1/G(x).
F(x)/G(x) = (3x+1)/(8x-9) * (8x-9)/5x=
d. The domain = all real values of X:
-Infinity < X < +Infinity.