Question

Let f(x) = x2 and g(x) = x - 3. Evaluate the expression.

(fºg)(x)
Α. χ2 -3
B. x2 - 6x + 9
C. 2x - 6
D. x2 + 6x + 9

Answer 1

B

Explanation:

(fºg)(x) is also f(g(x)).

Therefore:

f(x - 3)= (x-3)^2

f(x-3) = x^2 - 6x + 9