Given the parent functions f(x) = 5x − 1 and g(x) = 3x − 9, what is g(x) − f(x)?

g(x) − f(x) = 3^x − 8 − 5x

g(x) − f(x) = 3^x − 10 − 5x

g(x) − f(x) = −2x − 8 − 3^x

g(x) − f(x) = −2x − 10 − 3^x

Question

Given the parent functions f(x) = 5x − 1 and g(x) = 3x − 9, what is g(x) − f(x)?

g(x) − f(x) = 3^x − 8 − 5x 

 g(x) − f(x) = 3^x − 10 − 5x 

 g(x) − f(x) = −2x − 8 − 3^x 

 g(x) − f(x) = −2x − 10 − 3^x

anonymous · Answer

Please help :(

bradely · Answer

g(x) − f(x) =(3^x − 9)-(5x − 1 ) =3^x-9-5x+1 =3^x-5x-9+1 =3^x-5x-8 Option 1 is correct Source: http://www.mathskey.com/question2answer/

anonymous · Answer

$$g(x) -f(x) = 3x -9 -(5x -1) => 3x -9 -5x + 1 = -2x -8$$

3rd option I guess