1. which expression is equal to (f+g) (*) f (x) = x^2+3; g (x) = x-1
A. x^3-3
B. x^2-2x+4
C. x^2+x+2
D. x^3-x^2+3x-3
2. which expression is equal to (fog) (x)
f (x) = 3x; g (x) = 4x^2+1
A. 12x^3+3x
B. 4x^2+3x+1
C. 12x^2+3
D. 36x^2+1
3. f (x) = 2x-8; g (x) = x-5
what is the value of (gof) (6)
a. - 6
b. - 1
c. 1
d. 6
4. f (x) = 5x-10 what is the value of f^-1 (-3)
a. - 5
b. 1.4
c. 9.4
d. - 25
+1
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Home » Mathematics » 1. which expression is equal to (f+g) (*) f (x) = x^2+3; g (x) = x-1 A. x^3-3 B. x^2-2x+4 C. x^2+x+2 D. x^3-x^2+3x-3 2. which expression is equal to (fog) (x) f (x) = 3x; g (x) = 4x^2+1 A. 12x^3+3x B. 4x^2+3x+1 C. 12x^2+3 D. 36x^2+1 3.