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October 23, 2014

October 23, 2014

Posted by **BERNIE** on Wednesday, August 22, 2012 at 7:59pm.

find the following pairs

a)(f 0 g)(x), b)(f 0 g)(-3) c) (g 0 f)(x) c)(g 0 f)(4)

I am haing trouble with these two, can you please help me

thankyou

- algebra 2 -
**Reiny**, Wednesday, August 22, 2012 at 10:25pmI will use the more traditional way of writing these

(f 0 g)(x)

= f(g(x))

= f(6x^2 - 3x + 6)

= 2(6x^2 - 3x + 6) or 12x^2 - 6x + 12

(f 0 g)(-3))

= 12(9) - 6(-3) + 12 = 138

or

g(-3) = 6(9) - 3(-3) + 6 = 69

f(g(-3)) = f(69) = 138

try the others the same way

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