2024 April(Z13) Math Question 28
Algebraic & Function Expressions
- Solve Function Expressions
First evaluate g(−3)g(-3)g(−3):
g(−3)=(−3)2−2=9−2=7g(-3) = (-3)^2 - 2 = 9 - 2 = 7g(−3)=(−3)2−2=9−2=7
Then evaluate f(g(−3))=f(7)f(g(-3)) = f(7)f(g(−3))=f(7):
f(7)=3(7)+4=21+4=25f(7) = 3(7) + 4 = 21 + 4 = 25f(7)=3(7)+4=21+4=25
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