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anonymous
 one year ago
If f(x) = 3x + 2 and g(x) = 2x – 2, what is (f – g)(x)?
x + 4
x – 2
x
5x – 2
x – 4
anonymous
 one year ago
If f(x) = 3x + 2 and g(x) = 2x – 2, what is (f – g)(x)? x + 4 x – 2 x 5x – 2 x – 4

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Jacob902
 one year ago
Best ResponseYou've already chosen the best response.1example If F(x)=3x2 and g(x)= 2x1, then g(f(x)) is equal to what?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I need help I don't know how to do this

Jacob902
 one year ago
Best ResponseYou've already chosen the best response.1g(f(x)) means that the function g is composed at the function f. You need to plug the value of f(x) into the function g and simplify. g(x) = 2x  1 Replace x with the value of f(x) which is 3x  2 and simplify. g(f(x)) = 2x  1 g(3x  2) = 2(3x  2)  1 g(3x  2) = 6x  4  1 g(3x  2) = 6x  5 So, g(f(x)) = 6x  5

Jacob902
 one year ago
Best ResponseYou've already chosen the best response.1theres an example dont want to give it out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what is it? can u take me through the steps

Jacob902
 one year ago
Best ResponseYou've already chosen the best response.1If f(x)=3x^2+1 and g(x)=2x+2 find a) g^1(x), the inverse of g(x) b) (fog^1)(2)

Jacob902
 one year ago
Best ResponseYou've already chosen the best response.1If g(x) = 2x + 2, this means it takes an input value, doubles it, and then adds 2. The inverse will do the opposite, in the opposite order. So the inverse will first do the opposite of adding 2, so it subtracts 2, or x  2. Then it does the opposite of multiplying, by dividing by 2, so (x2) / 2. So g1(x)= (x2) / 2. To find (fog1)(2), you start by putting 2 into g inverse for x . So g1(2) = (22) /2 , so zero. Then, we put 0 into f, so f(0) = 3(0)2 + 1, so (fog1)(2) = 1. Hope that helped.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0great explanation :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but what is the answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[(fg)(x)=f(x)g(x)\] \[\therefore (fg)(x)=(3x2)(2x2)\] \[=3x22x+2\] \[=3x2x+22\] \[=x+0\] \[\therefore (fg)(x)=x\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If f(x) = 2x2 + 3x and g(x) = x – 2, what is (f + g)(2)? 16 14 12 10 8
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