Question

What is the domain of the relation graphed below?

Answer 1

The answer : domain is third one

Answer 2

Answer:

C) {x|  $-4\leq x\leq 4$}

Step-by-step explanation:

The graphed figure is an 'Ellipse' which has the form,

$\frac{x^{2} }{a^{2} } +\frac{y^{2} }{b^{2} } = 1$

where  $-x\leq a\leq x$ and $-y\leq b\leq y$.

Also, the domain of an ellipse is the range of 'a'

i.e. $-x\leq a\leq x$

i.e.  $-4\leq a\leq 4$

Hence, the domain is {x|  $-4\leq x\leq 4$}