Question

If f(c) =x+7 and g(x)= 1/x-13x, what is the domain of (f circle g)(x)

Answer 1

last option, x

Explanation:

(f of g)(x) means f(x) x g(x):

(x + 7) x (1 / x - 13) = (x + 7) / (x - 13)

domain is all possible x values which is the denominator, x - 13

x - 13 = 0

Interval notation: (−∞,13)∪(13,∞) this means x does not equal 13