Precalc Math Help: Find (g o f)(-2)

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SUMMARY

The discussion focuses on the composition of functions, specifically calculating (g o f)(-2) where f(x) = 4 - x and g(x) = 1 + x^2. To solve this, first substitute -2 into f(x) to get f(-2) = 6. Then, substitute this result into g(x) to find g(6) = 37. The final answer is (g o f)(-2) = 37.

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carebear184
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Hi, I need help with the following problem:
If f(x)=4-x and the g(x)=1+x^2 find the (g(small circle)f)(-2).
Thanks
 
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It's basic algebra - substitute -2 for x in f(x), then substitute that for x in g(x).
 

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