Question

Given that f(x)=x2−5x+6
and g(x)=x−2
, what value of x
must be excluded from the domain of (fg)(x)
?(1 point)
The value of x
that must be excluded from the domain of (fg)(x)
is x=

.

Answer 1

x = 2

Reason: g(x) = x − 2 = 0 at x = 2, so if the expression is a quotient (f/g)(x) that would make the denominator zero. (If it were the product (fg)(x), no real x would need to be excluded.)