Question

3. For the function, :c(X)=x^2+4x-5 over x+5 (a) Identify the restricted domain value(s).

Answer 1

Domain is all the possible inputs of an equation. In this example, the only concern is the x + 5 because the denominator cannot equal 0 because we can't divided by 0. So we set x + 5 equal to zero and solve for x.

x + 5 = 0
x = -5
The restriction is that x cannot equal -5.