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Given that f(x)=5x+9 and g(x)=9-x^2 calculate f(g(0)) g(f(0))

Given that f(x)=5x+9 and g(x)=9-x^2 calculate f(g(0)) g(f(0))
asked 92.4k views
1 vote
Given that f(x)=5x+9 and g(x)=9-x^2
calculate
f(g(0))
g(f(0))

asked
User Hild
by
7.4k points

1 Answer

2 votes
Start from the inside and work your way out

For f(g(0)), g(0)= 9-(0^2) = 9, f(9)= 5(9)+9 = 54
So f(g(0)) = 54

For g(f(0)), f(0)= 5(0)+9 = 9, g(9)= 9-(9^2) = -72
So g(f(0)) = -72
answered
User John Himmelman
by
7.6k points
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