Question

If f(x) = x - 1 and g(x) = 2x - 3, find (fg)(x).









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QUESTION 7

7. If f(x) = x - 1 and g(x) = 2x - 3, find (g - f)(x).









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QUESTION 8

8. If f(x) = x + 4 and g(x) = 5x - 2, find (g-f)(2).









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QUESTION 9

9. If f(x) = x + 4 and g(x) = 5x - 2, find (g + f)(-3).









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3 points
QUESTION 10

10. If f(x) = x + 4 and g(x) = 5x - 2, find (gf)(4).








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Answer 1

Hey try to limit 1 question per post, lets look at #6/ first one you have up there.

\[(fg)(x) = f(x)g(x) = (x-1)(2x-3)\] this means you multiply the to the functions

Answer 2

two*

Answer 3

\[(g-f)(x) = g(x)-f(x) = (2x-3)-(x-1)\] then your next one means subtract the two functions

Answer 4

I think you should be able to do the rest, don't forget to simplify!

Answer 5

ok thanks

Answer 6

are they all the same setup?

Answer 7

Yeah pretty much, just the sign might be different

Answer 8

Like (g+f)(x)

Answer 9

That just means g(x)+f(x)

Answer 10

ok I'm still having trouble finding the answer

Answer 11

For the first one you're just distributing you know how to do that? the arrows indicate multiply