Mathematics
Grade10
Easy
Question
If f(x) = 5 - 2x , g(x) = 3 + x , evaluate g(f(-2))
- -12
- -6
- 6
- 12
The correct answer is: 12
To find the value of g(f(-2)) if f(x) = 5 - 2x , g(x) = 3 + x .
Given f(x) = 5 - 2x , g(x) = 3 + x
f(-2) = 5 - 2 (-2) = 5 + 4 = 9
g(f(-2)) = g(9) = 3 + 9 = 12
Hence ,the value of g(f(-2)) if f(x) = 5 - 2x , g(x) = 3 + x is 12.
