What is the domain of the function y=square root of x +4

Question

asked Jun 10, 2017 103k views

2 Answers

Vajda · Answer 1 · 2017-06-10T13:23:21+0000

domain is found by solving x-4>=0 the range is found by thinking of the outputs the outputs can range from 0 to infinity hope this helps

Geofrey Ssekirime · Answer 2 · 2017-06-14T09:27:50+0000

Answer:

The domain of the function are real values of x for which
$x \geq -4$

Explanation:

The square root function is:

g(x) = √(f(x))

It's domain is:

real values of x, for which
$f(x) \geq 0$

In this problem, we have that:

y = √(x + 4)

So

f(x) = x + 4

$f(x) \geq 0$

$x + 4 \geq 0$

$x \geq -4$

The domain of the function are real values of x for which
$x \geq -4$