Question

The functions fand g are defined as follows.

g(x) = 2x³ +2
f(x) = -5x+2
Find f(3) and g (-3).
Simplify your answers as much as possible.
ƒ(³) = 0
g (-3) =

Answer 1

• f(x) = -5x + 2
• f(3) = -5(3) + 2
• f(3) = -15 + 2
• f(3) = -13

• g(x) = 2x³ + 2
• g(-3) = 2(-3)³ + 2
• g(-3) = 2(-27) + 2
• g(-3) = -54 + 2
• g(-3) = -52

Hence, the functions f(3) and g(-3) are respectively as follows :-

1. f(3) = -13
2. g(-3) = -52