Question

Find the domain D of each of the following real-valued function f left (x right) =sqrt9−x^2

a.\\([3,9]\\)

b.\\([3,0]\\)

c.\\([3,0]\\)

d.\\( [0,3]\\

Answer 1

$$9-x^2\geq0$$

$$x^2-9\leq0$$

$$(x+3)(x-3)\leq0$$

$$-3\leq x\leq 3$$

$Domain:[-3, 3]$