Question

Pre-calculus: Finding domains.

Answer 1

Answer: a. Domain: (-∞, 0)U(0, ∞)

b. Domain: (-∞, 3)U(3, ∞)

Explanation:

a. 5/|x| ==> x can't equal 0.

Domain: (-∞, 0)U(0, ∞)

b. f o g=

f(g(x))=

f(x-3)=5/|x-3| ==> x-3 can't equal 0. x can't equal 3.

Domain: (-∞, 3)U(3, ∞)