Why does a siren have a higher pitch as it approaches you?
2 answers:
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Answer:
(a)
(b) -6, 2
Step-by-step explanation:
Given: g(x) = x + 1
h(x) = (x + 6)(x - 2)
Therefore,
(a)
Therefore, g/h(3) = 4/9
(b) Values not in domain means we have to determine for which values of x the function becomes undefined.
This happens when the denominator becomes zero.
That means h(x) = 0
⇒ (x + 6)(x - 2) = 0
⇒ x = -6 or x = 2
Therefore, when x takes one or both of these values we can say that the function becomes undefined.