Math, asked by jerryfisher, 1 year ago

Given f(x)=x^2-8 and g(x)=x+1/x, find (g o f)(1)
[Hint:(g o f)(-4)=(g(f(-4))]
a.)8/7 b.)8 c.)6/7 d.)-8

Answers

Answered by 99EkanshNimbalkar
1
f(1) is equal to 1^2-8, or -7.

g(x) is (-7+1)/-7, or -6/-7.  This simplifies to 6/7.  C is the best option.

Also, since you posted a similar question earlier, I knew what to look for with g(x), but in the future, this looks like the x is not divided by the x in the denominator, and you should express this function as (x+1)/x to increase clarity.

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