SOLUTION: For the given functions f and g, find the requested function and state its domain. f(x) = 4x - 3; g(x) = 8x - 9 Find f - g. For the given functions f and g, find the request

Algebra ->  Functions -> SOLUTION: For the given functions f and g, find the requested function and state its domain. f(x) = 4x - 3; g(x) = 8x - 9 Find f - g. For the given functions f and g, find the request      Log On


   

Question 658673: For the given functions f and g, find the requested function and state its domain.
f(x) = 4x - 3; g(x) = 8x - 9
Find f - g.
For the given functions f and g, find the requested function and state its domain.
f(x) = 3x + 4; g(x) = 4x - 6
Find f ∙ g.
For the given functions f and g, find the requested function and state its domain.
f(x) = 4x + 3; g(x) = 5x - 2
Find f/g

Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
+f+-+g=%284x+-+3%29-%288x+-+9%29=4x+-+3-8x+%2B9=-4x%2B6
The domain is all real x
f%2Ag=%283x+%2B+4%29%2A%28+4x+-+6%29=12x%5E2-18x%2B16x-24=12x%5E2-2x-24
The domain is all real x
+f%2Fg+=%284x+%2B+3%29%2F%285x+-+2%29
The domain is 5x+-+2 not equal 0
xis not equal 0.4